fix: unify address display with shared renderAddressHtml utility

All address rendering now uses a single renderAddressHtml() function in helpers.js that produces consistent output everywhere: - Color dot (deterministic from address) - Full address with dashed-underline click-to-copy affordance - Etherscan external link icon Refactored all callsites across 9 view files: - approval.js: approvalAddressHtml now delegates to renderAddressHtml, added attachCopyHandlers for click-to-copy on approve-tx/sign/site views - confirmTx.js: confirmAddressHtml uses renderAddressHtml, token contract address uses renderAddressHtml with attachCopyHandlers - txStatus.js: toAddressHtml delegates to renderAddressHtml - transactionDetail.js: txAddressHtml delegates to renderAddressHtml, decoded calldata addresses use renderAddressHtml - home.js: active address display uses renderAddressHtml - send.js: from-address display uses renderAddressHtml - receive.js: address block uses formatAddressHtml (which delegates to renderAddressHtml), removed separate etherscan link element - addressDetail.js: address line uses renderAddressHtml, export-privkey address uses renderAddressHtml - addressToken.js: address line and contract info use renderAddressHtml Also consolidated: - EXT_ICON SVG constant moved to helpers.js (removed 6 duplicates) - copyableHtml() moved to helpers.js (removed duplicate in transactionDetail) - etherscanLinkHtml() moved to helpers.js (removed duplicates) - attachCopyHandlers() moved to helpers.js (removed duplicate in txStatus) - Removed unused local functions (etherscanTokenLink, etherscanAddressLink) - Cleaned up unused imports across all files closes #97
2026-03-01 10:37:47 -08:00
47 changed files with 141 additions and 3443 deletions
--- a/.gitea/workflows/check.yml
+++ b/.gitea/workflows/check.yml
@@ -6,4 +6,4 @@ jobs:
        steps:
            # actions/checkout v4.2.2, 2026-02-22
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-            - run: script/cibuild
+            - run: docker build .
--- a/10
+++ b/10
@@ -1,15 +1,13 @@
 # node:22-slim (22.x LTS), 2026-02-24
 FROM node@sha256:5373f1906319b3a1f291da5d102f4ce5c77ccbe29eb637f072b6c7b70443fc36

+RUN apt-get update && apt-get install -y --no-install-recommends make && rm -rf /var/lib/apt/lists/*
+RUN corepack enable && corepack prepare yarn@1.22.22 --activate
+
 WORKDIR /app

-# script/bootstrap installs all prerequisites (make via apt here; node
-# is already in the base image, yarn comes via corepack) and runs
-# yarn install --frozen-lockfile. Dependency manifests are copied first
-# so the bootstrap layer is cached until they change.
-COPY script/ script/
 COPY package.json yarn.lock ./
-RUN script/bootstrap
+RUN yarn install --frozen-lockfile

 COPY . .

--- a/45
+++ b/45
@@ -1,38 +1,25 @@
-.PHONY: bootstrap setup install test lint fmt fmt-check check docker hooks build clean dev
-
-# Standard targets are thin shims; the implementations live in script/
-# per the scripts-to-rule-them-all pattern (see the Entrypoints section
-# of README.md).
-
-bootstrap:
-	@script/bootstrap
-
-setup:
-	@script/setup
+.PHONY: install test lint fmt fmt-check check docker hooks build clean dev

 install:
 	@yarn install

 test:
-	@script/test
+	@echo "Running tests..."
+	@timeout 30 yarn run test 2>&1

 lint:
-	@script/lint
+	@echo "Linting..."
+	@yarn run lint 2>&1

 fmt:
-	@script/fmt
+	@echo "Formatting..."
+	@yarn run fmt 2>&1

 fmt-check:
-	@script/fmt-check
+	@echo "Checking formatting..."
+	@yarn run fmt-check 2>&1

-check:
-	@script/check
-
-docker:
-	@script/docker
-
-hooks:
-	@script/install-precommit
+check: test lint fmt-check

 build:
 	@echo "Building extension..."
@@ -44,3 +31,15 @@ clean:
 dev:
 	@echo "Building in watch mode..."
 	@yarn run build --watch 2>&1
+
+docker:
+	@docker build -t autistmask .
+
+hooks:
+	@echo "Installing pre-commit hook..."
+	@mkdir -p .git/hooks
+	@echo '#!/usr/bin/env bash' > .git/hooks/pre-commit
+	@echo 'set -euo pipefail' >> .git/hooks/pre-commit
+	@echo 'make check' >> .git/hooks/pre-commit
+	@chmod +x .git/hooks/pre-commit
+	@echo "Pre-commit hook installed."
--- a/README.md
+++ b/README.md
@@ -42,29 +42,6 @@ Load the extension:
 - **Firefox**: Navigate to `about:debugging#/runtime/this-firefox`, click "Load
  Temporary Add-on", and select `dist/firefox/manifest.json`.

-## Entrypoints
-
-This repository adheres to the
-[Scripts to Rule Them All](https://github.com/github/scripts-to-rule-them-all)
-standard: normalized scripts in `script/` are the entrypoints for the
-development workflow, and the Makefile targets are thin shims that call them. We
-provide:
-
- `script/bootstrap` — install all dependencies (pinned node via nvm if needed,
-  yarn via corepack, `yarn install --frozen-lockfile`)
- `script/setup` — make a fresh clone ready for development: bootstrap plus the
-  git pre-commit hook
- `script/projectname` — print the project name (used for the Docker image tag)
- `script/test` — run the test suite (jest)
- `script/lint` — run the linter
- `script/fmt` — format all files (writes)
- `script/fmt-check` — check formatting (read-only)
- `script/check` — run test, lint, and fmt-check
- `script/docker` — build the Docker image tagged via `script/projectname`
- `script/cibuild` — CI entrypoint: plain `docker build .`
- `script/precommit` — run by the git pre-commit hook; runs `script/check`
- `script/install-precommit` — install the git pre-commit hook
-
 ## Rationale

 Common popular EVM wallets have become bloated with swap UIs, portfolio
--- a/REPO_POLICIES.md
+++ b/REPO_POLICIES.md
@@ -1,6 +1,6 @@
 ---
 title: Repository Policies
-last_modified: 2026-07-06
+last_modified: 2026-02-22
 ---

 This document covers repository structure, tooling, and workflow standards. Code
@@ -34,46 +34,10 @@ style conventions are in separate documents:
  every file before committing. There are zero exceptions to this rule.

 - Every repo with software must have a root `Makefile` with these targets:
-  `make bootstrap`, `make setup`, `make test`, `make lint`, `make fmt` (writes),
-  `make fmt-check` (read-only), `make check` (runs `test`, `lint`, `fmt-check`),
-  `make docker`, and `make hooks` (installs pre-commit hook). A model Makefile
-  is at `https://git.eeqj.de/sneak/prompts/raw/branch/main/Makefile`.
-
- Repos follow the
-  [Scripts to Rule Them All](https://github.com/github/scripts-to-rule-them-all)
-  pattern: the implementation of each Makefile target lives in an executable
-  script in `script/` (`script/bootstrap`, `script/setup`, `script/test`,
-  `script/lint`, `script/fmt`, `script/fmt-check`, `script/check`,
-  `script/docker`), and the Makefile targets are thin shims that call them. The
-  scripts must be POSIX sh (`#!/bin/sh`, `set -eu`, no bashisms) so they run in
-  minimal containers (e.g. alpine images have no bash); locate the repo root
-  with `$(cd "$(dirname "$0")/.." && pwd -P)` and `cd` there before acting. From
-  the standard's canonical set we use `bootstrap`, `setup` (make the repo ready
-  for development after a fresh clone: runs `bootstrap`, then
-  `install-precommit`, plus any repo-specific initialization), `test`, and
-  `cibuild`. `script/bootstrap` installs all dependencies idempotently and
-  assumes nothing is present: base tools come from nix, apt, brew, or apk
-  (detected in that order; apt runs noninteractive). For node it uses the
-  installed node if present; otherwise it installs a PINNED node version via
-  nvm, first installing nvm itself if missing — from a hash-verified GitHub
-  release archive (never `curl | sh`), with bash installed as an explicit
-  prerequisite since nvm requires bash. yarn is then pinned via
-  `corepack prepare yarn@<version> --activate`. Never install "latest" or "lts";
-  always exact versions. `script/cibuild` runs the CI build: it changes to the
-  repo root and runs `docker build .`; the Gitea workflow calls it. Four further
-  scripts are our own extensions to the standard: `script/check` runs
-  `script/test`, `script/lint`, and `script/fmt-check`; `script/precommit` is
-  what the git pre-commit hook runs, and it calls `script/check`;
-  `script/install-precommit` installs the git pre-commit hook (the `make hooks`
-  target shims to it); and `script/projectname` (literally that filename) simply
-  outputs the project's name. Scripts that need the name call
-  `script/projectname` — e.g. `script/docker` assembles its image tag from it —
-  so those scripts stay byte-identical across all repos. Repo-type-specific
-  pre-commit extras (e.g. `go mod tidy` verification in Go repos) belong in
-  `script/precommit`, not in the hook itself. Model scripts are at
-  `https://git.eeqj.de/sneak/prompts/raw/branch/main/script/<name>`. The README
-  must document the provided scripts in an **Entrypoints** section (see the
-  README requirements below).
+  `make test`, `make lint`, `make fmt` (writes), `make fmt-check` (read-only),
+  `make check` (prereqs: `test`, `lint`, `fmt-check`), `make docker`, and
+  `make hooks` (installs pre-commit hook). A model Makefile is at
+  `https://git.eeqj.de/sneak/prompts/raw/branch/main/Makefile`.

 - Always use Makefile targets (`make fmt`, `make test`, `make lint`, etc.)
  instead of invoking the underlying tools directly. The Makefile is the single
@@ -93,83 +57,11 @@ style conventions are in separate documents:
  as a build step so the build fails if the branch is not green. For non-server
  repos, the Dockerfile should bring up a development environment and run
  `make check`. For server repos, `make check` should run as an early build
-  stage before the final image is assembled. Dockerfiles install development
-  prerequisites by running `script/bootstrap` rather than duplicating installs
-  inline; COPY `script/` and the dependency manifests (`package.json` +
-  `yarn.lock`, `go.mod` + `go.sum`, etc.) before running it so the bootstrap
-  layer stays cached until dependencies change.
-
- **Dockerfiles must use a separate lint stage for fail-fast feedback.** Go
-  repos use a multistage build where linting runs in an independent stage based
-  on the `golangci/golangci-lint` image (pinned by hash). This stage runs
-  `make fmt-check` and `make lint` before the full build begins. The build stage
-  then declares an explicit dependency on the lint stage via
-  `COPY --from=lint /src/go.sum /dev/null`, which forces BuildKit to complete
-  linting before proceeding to compilation and tests. This ensures lint failures
-  surface in seconds rather than minutes, without blocking on dependency
-  download or compilation in the build stage.
-
-    The standard pattern for a Go repo Dockerfile is:
-
-    ```dockerfile
-    # Lint stage — fast feedback on formatting and lint issues
-    # golangci/golangci-lint:v2.x.x, YYYY-MM-DD
-    FROM golangci/golangci-lint@sha256:... AS lint
-    WORKDIR /src
-    COPY go.mod go.sum ./
-    RUN go mod download
-    COPY . .
-    RUN make fmt-check
-    RUN make lint
-
-    # Build stage
-    # golang:1.x-alpine, YYYY-MM-DD
-    FROM golang@sha256:... AS builder
-    WORKDIR /src
-
-    # Force BuildKit to run the lint stage before proceeding
-    COPY --from=lint /src/go.sum /dev/null
-
-    COPY go.mod go.sum ./
-    RUN go mod download
-    COPY . .
-    RUN make test
-
-    ARG VERSION=dev
-    RUN CGO_ENABLED=0 go build -trimpath \
-        -ldflags="-s -w -X main.Version=${VERSION}" \
-        -o /app ./cmd/app/
-
-    # Runtime stage
-    FROM alpine@sha256:...
-    COPY --from=builder /app /usr/local/bin/app
-    ENTRYPOINT ["app"]
-    ```
-
-    Key points:
-    - The lint stage uses the `golangci/golangci-lint` image directly (it
-      includes both Go and the linter), so there is no need to install the
-      linter separately.
-    - `COPY --from=lint /src/go.sum /dev/null` is a no-op file copy that creates
-      a stage dependency. BuildKit runs stages in parallel by default; without
-      this line, the build stage would not wait for lint to finish and a lint
-      failure might not fail the overall build.
-    - If the project uses `//go:embed` directives that reference build artifacts
-      (e.g. a web frontend compiled in a separate stage), the lint stage must
-      create placeholder files so the embed directives resolve. Example:
-      `RUN mkdir -p web/dist && touch web/dist/index.html web/dist/style.css`.
-      The lint stage should not depend on the actual build output — it exists to
-      fail fast.
-    - If the project requires CGO or system libraries for linting (e.g.
-      `vips-dev`), install them in the lint stage with `apk add`.
-    - The build stage runs `make test` after compilation setup. Tests run in the
-      build stage, not the lint stage, because they may require compiled
-      artifacts or heavier dependencies.
+  stage before the final image is assembled.

 - Every repo should have a Gitea Actions workflow (`.gitea/workflows/`) that
-  runs `script/cibuild` (which runs `docker build .`) on push. Since the
-  Dockerfile already runs `make check`, a successful build implies all checks
-  pass.
+  runs `docker build .` on push. Since the Dockerfile already runs `make check`,
+  a successful build implies all checks pass.

 - Use platform-standard formatters: `black` for Python, `prettier` for
  JS/CSS/Markdown/HTML, `go fmt` for Go. Always use default configuration with
@@ -177,11 +69,9 @@ style conventions are in separate documents:
  Markdown (hard-wrap at 80 columns). Documentation and writing repos (Markdown,
  HTML, CSS) should also have `.prettierrc` and `.prettierignore`.

- Pre-commit hook: runs `script/precommit`, which calls `script/check`. If local
-  testing is not possible in the repo, `script/precommit` may skip `script/test`
-  and run only `script/lint` and `script/fmt-check`. The hook is installed by
-  `script/install-precommit`; the Makefile must provide a `make hooks` target
-  that shims to it.
+- Pre-commit hook: `make check` if local testing is possible, otherwise
+  `make lint && make fmt-check`. The Makefile should provide a `make hooks`
+  target to install the pre-commit hook.

 - All repos with software must have tests that run via the platform-standard
  test framework (`go test`, `pytest`, `jest`/`vitest`, etc.). If no meaningful
@@ -192,42 +82,6 @@ style conventions are in separate documents:
 - `make test` must complete in under 20 seconds. Add a 30-second timeout in the
  Makefile.

- **`make test` should use the conditional verbose rerun pattern.** Run tests
-  without `-v` (verbose) first. If tests fail, automatically rerun with `-v` to
-  show full output. This keeps CI logs and `docker build` output clean on
-  success (just package/suite summaries) while providing full diagnostic detail
-  on failure (every test case, every assertion). The general shell pattern:
-
-    ```makefile
-    test:
-    	@<test-command> || \
-    		{ echo "--- Rerunning with -v for details ---"; \
-    		  <test-command-with-v>; exit 1; }
-    ```
-
-    Go example:
-
-    ```makefile
-    test:
-    	@go test -timeout 30s -race -cover ./... || \
-    		{ echo "--- Rerunning with -v for details ---"; \
-    		  go test -timeout 30s -race -v ./...; exit 1; }
-    ```
-
-    Python example:
-
-    ```makefile
-    test:
-    	@python -m pytest || \
-    		{ echo "--- Rerunning with -v for details ---"; \
-    		  python -m pytest -v; exit 1; }
-    ```
-
-    The `exit 1` ensures the target always fails after a rerun — the first run
-    already proved the tests are broken, so the build must not pass even if a
-    flaky test happens to succeed on the second attempt. The rerun exists solely
-    for diagnostic output.
-
 - Docker builds must complete in under 5 minutes.

 - `make check` must not modify any files in the repo. Tests may use temporary
@@ -244,13 +98,6 @@ style conventions are in separate documents:
  `https://git.eeqj.de/sneak/prompts/raw/branch/main/.gitignore` when setting up
  a new repo.

- **No build artifacts in version control.** Code-derived data (compiled
-  bundles, minified output, generated assets) must never be committed to the
-  repository if it can be avoided. The build process (e.g. Dockerfile, Makefile)
-  should generate these at build time. Notable exception: Go protobuf generated
-  files (`.pb.go`) ARE committed because repos need to work with `go get`, which
-  downloads code but does not execute code generation.
-
 - Never use `git add -A` or `git add .`. Always stage files explicitly by name.

 - Never force-push to `main`.
@@ -274,76 +121,12 @@ style conventions are in separate documents:
 - Dockerized web services listen on port 8080 by default, overridable with
  `PORT`.

- **HTTP/web services must be hardened for production internet exposure before
-  tagging 1.0.** This means full compliance with security best practices
-  including, without limitation, all of the following:
-    - **Security headers** on every response:
-        - `Strict-Transport-Security` (HSTS) with `max-age` of at least one year
-          and `includeSubDomains`.
-        - `Content-Security-Policy` (CSP) with a restrictive default policy
-          (`default-src 'self'` as a baseline, tightened per-resource as
-          needed). Never use `unsafe-inline` or `unsafe-eval` unless
-          unavoidable, and document the reason.
-        - `X-Frame-Options: DENY` (or `SAMEORIGIN` if framing is required).
-          Prefer the `frame-ancestors` CSP directive as the primary control.
-        - `X-Content-Type-Options: nosniff`.
-        - `Referrer-Policy: strict-origin-when-cross-origin` (or stricter).
-        - `Permissions-Policy` restricting access to browser features the
-          application does not use (camera, microphone, geolocation, etc.).
-    - **Request and response limits:**
-        - Maximum request body size enforced on all endpoints (e.g. Go
-          `http.MaxBytesReader`). Choose a sane default per-route; never accept
-          unbounded input.
-        - Maximum response body size where applicable (e.g. paginated APIs).
-        - `ReadTimeout` and `ReadHeaderTimeout` on the `http.Server` to defend
-          against slowloris attacks.
-        - `WriteTimeout` on the `http.Server`.
-        - `IdleTimeout` on the `http.Server`.
-        - Per-handler execution time limits via `context.WithTimeout` or
-          chi/stdlib `middleware.Timeout`.
-    - **Authentication and session security:**
-        - Rate limiting on password-based authentication endpoints. API keys are
-          high-entropy and not susceptible to brute force, so they are exempt.
-        - CSRF tokens on all state-mutating HTML forms. API endpoints
-          authenticated via `Authorization` header (Bearer token, API key) are
-          exempt because the browser does not attach these automatically.
-        - Passwords stored using bcrypt, scrypt, or argon2 — never plain-text,
-          MD5, or SHA.
-        - Session cookies set with `HttpOnly`, `Secure`, and `SameSite=Lax` (or
-          `Strict`) attributes.
-    - **Reverse proxy awareness:**
-        - True client IP detection when behind a reverse proxy
-          (`X-Forwarded-For`, `X-Real-IP`). The application must accept
-          forwarded headers only from a configured set of trusted proxy
-          addresses — never trust `X-Forwarded-For` unconditionally.
-    - **CORS:**
-        - Authenticated endpoints must restrict `Access-Control-Allow-Origin` to
-          an explicit allowlist of known origins. Wildcard (`*`) is acceptable
-          only for public, unauthenticated read-only APIs.
-    - **Error handling:**
-        - Internal errors must never leak stack traces, SQL queries, file paths,
-          or other implementation details to the client. Return generic error
-          messages in production; detailed errors only when `DEBUG` is enabled.
-    - **TLS:**
-        - Services never terminate TLS directly. They are always deployed behind
-          a TLS-terminating reverse proxy. The service itself listens on plain
-          HTTP. However, HSTS headers and `Secure` cookie flags must still be
-          set by the application so that the browser enforces HTTPS end-to-end.
-
-    This list is non-exhaustive. Apply defense-in-depth: if a standard security
-    hardening measure exists for HTTP services and is not listed here, it is
-    still expected. When in doubt, harden.
-
 - `README.md` is the primary documentation. Required sections:
    - **Description**: First line must include the project name, purpose,
      category (web server, SPA, CLI tool, etc.), license, and author. Example:
      "µPaaS is an MIT-licensed Go web application by @sneak that receives
      git-frontend webhooks and deploys applications via Docker in realtime."
    - **Getting Started**: Copy-pasteable install/usage code block.
-    - **Entrypoints**: Opens by stating that the repo adheres to the
-      [Scripts to Rule Them All](https://github.com/github/scripts-to-rule-them-all)
-      standard (with that link), then documents each provided `script/`
-      entrypoint and its purpose.
    - **Rationale**: Why does this exist?
    - **Design**: How is the program structured?
    - **TODO**: Update meticulously, even between commits. When planning, put
@@ -361,14 +144,8 @@ style conventions are in separate documents:
 - Use SemVer.

 - Database migrations live in `internal/db/migrations/` and must be embedded in
-  the binary.
-    - `000_migration.sql` — contains ONLY the creation of the migrations
-      tracking table itself. Nothing else.
-    - `001_schema.sql` — the full application schema.
-    - **Pre-1.0.0:** never add additional migration files (002, 003, etc.).
-      There is no installed base to migrate. Edit `001_schema.sql` directly.
-    - **Post-1.0.0:** add new numbered migration files for each schema change.
-      Never edit existing migrations after release.
+  the binary. Pre-1.0.0: modify existing migrations (no installed base assumed).
+  Post-1.0.0: add new migration files.

 - All repos should have an `.editorconfig` enforcing the project's indentation
  settings.
@@ -398,9 +175,6 @@ style conventions are in separate documents:
    - `README.md`, `.git`, `.gitignore`, `.editorconfig`
    - `LICENSE`, `REPO_POLICIES.md` (copy from the `prompts` repo)
    - `Makefile`
-    - `script/` entrypoints (`bootstrap`, `setup`, `projectname`, `test`,
-      `lint`, `fmt`, `fmt-check`, `check`, `docker`, `cibuild`, `precommit`,
-      `install-precommit`)
    - `Dockerfile`, `.dockerignore`
    - `.gitea/workflows/check.yml`
    - Go: `go.mod`, `go.sum`, `.golangci.yml`
--- a/TODO.md
+++ b/TODO.md
@@ -1,56 +0,0 @@
-# Workflow
-
- branch (from `main`)
- do the work in Next Step
- move Next Step to the top of Completed Steps
- move the top item of Future Steps into Next Step
- commit (`TODO.md` changes in the same commit as the work)
- merge to `main` if the branch is not protected, otherwise open a PR
- push
-
-# Status
-
-pre-1.0. Tagged v0.1.0 on 2026-02-27. Active development on branch
-feat/issue-144-settings-about (another agent working as of 2026-07-06). Full
-policy file set present; make check on main not verified.
-
-# Next Step
-
-Land feat/issue-144-settings-about: finish the settings About well (build info,
-app name and repo link, release date, version click easter egg, git info derived
-inside Docker), resolve the untracked scripts/ directory (commit or gitignore),
-get review, merge to main.
-
-# Completed Steps
-
- 2026-07-07 Adopted scripts-to-rule-them-all: `script/` entrypoints, Makefile
-  shims, README Entrypoints section
- 2026-03-01: About well in settings with build info and easter egg (in flight
-  on feature branch); USD display suppressed on testnets (#142); estimated USD
-  for ETH in approve-tx view (#141).
- Sepolia testnet support (#137); etherscan links go to token-specific URLs
-  (#136).
- Transaction detail improvements: Type field and on-chain details (#130),
-  txid-first reordering (#133), swap display corrections (#128), expanded
-  confirm-tx warnings (#118).
- Dark mode theme setting (Light/Dark/System) with contrast fixes (#126);
-  timestamps include timezone offset (#120); layout shift audit, reserved space
-  for error messages (#124).
- Copy-flash visual feedback with timing tune (#113, #121); cross-wallet-type
-  duplicate detection (#115).
- 2026-02-27: v0.1.0 tagged.
- 2026-02-24: Initial scaffolding: popup UI, BIP-39 wallet creation via
-  ethers.js, wallet persistence, real ETH balances over RPC, ENS forward and
-  reverse resolution.
-
-# Future Steps
-
- Verify main passes make check after the feature branch merges (not verified
-  2026-07-06 because an agent was active in the tree); fix anything red. main
-  must always be green.
- Prune stale branches: dozens of merged local and remote feature branches
-  remain (fix/_, feature/_, tx-\*); delete merged ones locally and on origin.
- Continue the issue backlog toward a feature-complete wallet, then cut further
-  tags as milestones land.
- Pre-1.0 security review of the extension (key handling, DEBUG mode policy, RPC
-  input validation) before any 1.0rc tag.
--- a/script/bootstrap
+++ b/script/bootstrap
@@ -1,143 +0,0 @@
-#!/bin/sh
-# script/bootstrap: install all dependencies needed to build and develop
-# this repo. Idempotent: every install is guarded by a check so already
-# installed tools are skipped. Base tooling comes from nix, apt, brew,
-# or apk (detected in that order); assumes nothing is present. Node is
-# used directly if installed; otherwise it is installed at a pinned
-# version via nvm (installing nvm itself first, from a hash-verified
-# release archive, never curl | sh).
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-# Pinned versions, 2026-07-07
-NODE_VERSION="22.17.0"
-NVM_VERSION="0.40.3"
-# sha256 of https://github.com/nvm-sh/nvm/archive/refs/tags/v0.40.3.tar.gz
-NVM_SHA256="5f4d6aaa04a177dc93c985e31dbc411ab6b8c6e1e21d8015dbc1372625fcd1d0"
-YARN_VERSION="1.22.22"
-
-PKGMGR=""
-SUDO=""
-APT_UPDATED=""
-
-detect_pkgmgr() {
-    [ -n "$PKGMGR" ] && return 0
-    if command -v nix-env >/dev/null 2>&1; then
-        PKGMGR="nix"
-    elif command -v apt-get >/dev/null 2>&1; then
-        PKGMGR="apt"
-    elif command -v brew >/dev/null 2>&1; then
-        PKGMGR="brew"
-    elif command -v apk >/dev/null 2>&1; then
-        PKGMGR="apk"
-    else
-        echo "bootstrap: no supported package manager (nix, apt, brew, apk)" >&2
-        exit 1
-    fi
-    if [ "$PKGMGR" = "apt" ]; then
-        export DEBIAN_FRONTEND=noninteractive
-        if [ "$(id -u)" != "0" ]; then
-            SUDO="sudo"
-        fi
-    fi
-}
-
-# pkg_install <nix-attr> <apt-pkg> <brew-formula> <apk-pkg>
-pkg_install() {
-    detect_pkgmgr
-    case "$PKGMGR" in
-        nix) nix-env -iA "nixpkgs.$1" ;;
-        apt)
-            if [ -z "$APT_UPDATED" ]; then
-                $SUDO env DEBIAN_FRONTEND=noninteractive apt-get update
-                APT_UPDATED=1
-            fi
-            $SUDO env DEBIAN_FRONTEND=noninteractive apt-get install -y "$2"
-            ;;
-        brew) brew install "$3" ;;
-        apk) apk add --no-cache "$4" ;;
-    esac
-}
-
-missing() {
-    ! command -v "$1" >/dev/null 2>&1
-}
-
-# verify_sha256 <file> <expected-hash>
-verify_sha256() {
-    if command -v sha256sum >/dev/null 2>&1; then
-        actual="$(sha256sum "$1" | cut -d' ' -f1)"
-    else
-        actual="$(shasum -a 256 "$1" | cut -d' ' -f1)"
-    fi
-    if [ "$actual" != "$2" ]; then
-        echo "bootstrap: sha256 mismatch for $1" >&2
-        echo "  expected: $2" >&2
-        echo "  actual:   $actual" >&2
-        exit 1
-    fi
-}
-
-# nvm is a bash script; run a command in a bash with nvm loaded
-nvm_sh() {
-    bash -c ". \"\$HOME/.nvm/nvm.sh\" && $*"
-}
-
-ensure_nvm() {
-    [ -s "$HOME/.nvm/nvm.sh" ] && return 0
-    # nvm prerequisites; nvm itself requires bash
-    if missing bash; then pkg_install bash bash bash bash; fi
-    if missing curl; then pkg_install curl curl curl curl; fi
-    if missing git; then pkg_install git git git git; fi
-    tmp="$(mktemp -d)"
-    curl -fsSL -o "$tmp/nvm.tar.gz" \
-        "https://github.com/nvm-sh/nvm/archive/refs/tags/v${NVM_VERSION}.tar.gz"
-    verify_sha256 "$tmp/nvm.tar.gz" "$NVM_SHA256"
-    mkdir -p "$HOME/.nvm"
-    tar -xzf "$tmp/nvm.tar.gz" -C "$HOME/.nvm" --strip-components=1
-    rm -rf "$tmp"
-}
-
-ensure_node() {
-    if ! missing node; then return 0; fi
-    ensure_nvm
-    nvm_sh "nvm install $NODE_VERSION"
-}
-
-ensure_yarn() {
-    if ! missing yarn; then return 0; fi
-    if ! missing corepack; then
-        corepack enable
-        corepack prepare "yarn@$YARN_VERSION" --activate
-    elif [ -s "$HOME/.nvm/nvm.sh" ]; then
-        nvm_sh "nvm use $NODE_VERSION >/dev/null && corepack enable && \
-            corepack prepare yarn@$YARN_VERSION --activate"
-    else
-        npm install -g "yarn@$YARN_VERSION"
-    fi
-}
-
-install_js_deps() {
-    if missing yarn && [ -s "$HOME/.nvm/nvm.sh" ]; then
-        nvm_sh "nvm use $NODE_VERSION >/dev/null && cd \"$ROOT\" && \
-            yarn install --frozen-lockfile"
-    else
-        yarn install --frozen-lockfile
-    fi
-}
-
-main() {
-    cd "$ROOT"
-
-    if missing make; then pkg_install gnumake make make make; fi
-    if missing git; then pkg_install git git git git; fi
-
-    ensure_node
-    ensure_yarn
-    install_js_deps
-
-    echo "bootstrap complete"
-}
-
-main "$@"
--- a/script/check
+++ b/script/check
@@ -1,14 +0,0 @@
-#!/bin/sh
-# script/check: run all checks (test, lint, fmt-check). Our own
-# extension to scripts-to-rule-them-all. Must not modify any files.
-set -eu
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
-
-main() {
-    "$SCRIPT_DIR/test"
-    "$SCRIPT_DIR/lint"
-    "$SCRIPT_DIR/fmt-check"
-}
-
-main "$@"
--- a/script/cibuild
+++ b/script/cibuild
@@ -1,13 +0,0 @@
-#!/bin/sh
-# script/cibuild: run the CI build. The Dockerfile runs make check, so
-# a successful build implies all checks pass.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    docker build .
-}
-
-main "$@"
--- a/script/docker
+++ b/script/docker
@@ -1,14 +0,0 @@
-#!/bin/sh
-# script/docker: build the Docker image tagged with the project name.
-# Identical in all repos; the tag comes from script/projectname.
-set -eu
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
-ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    docker build -t "$("$SCRIPT_DIR/projectname")" .
-}
-
-main "$@"
--- a/script/fmt
+++ b/script/fmt
@@ -1,13 +0,0 @@
-#!/bin/sh
-# script/fmt: format all files (writes).
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    echo "Formatting..."
-    yarn run fmt 2>&1
-}
-
-main "$@"
--- a/script/fmt-check
+++ b/script/fmt-check
@@ -1,14 +0,0 @@
-#!/bin/sh
-# script/fmt-check: check formatting (read-only). Same scope as
-# script/fmt, but fails instead of writing.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    echo "Checking formatting..."
-    yarn run fmt-check 2>&1
-}
-
-main "$@"
--- a/script/install-precommit
+++ b/script/install-precommit
@@ -1,16 +0,0 @@
-#!/bin/sh
-# script/install-precommit: install the git pre-commit hook that runs
-# script/precommit. Our own extension to scripts-to-rule-them-all.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    hook=".git/hooks/pre-commit"
-    printf '#!/bin/sh\nset -e\nscript/precommit\n' > "$hook"
-    chmod +x "$hook"
-    echo "pre-commit hook installed: runs script/precommit"
-}
-
-main "$@"
--- a/script/lint
+++ b/script/lint
@@ -1,13 +0,0 @@
-#!/bin/sh
-# script/lint: run the linter.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    echo "Linting..."
-    yarn run lint 2>&1
-}
-
-main "$@"
--- a/script/precommit
+++ b/script/precommit
@@ -1,12 +0,0 @@
-#!/bin/sh
-# script/precommit: run by the git pre-commit hook; fails the commit if
-# checks fail. Our own extension to scripts-to-rule-them-all.
-set -eu
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
-
-main() {
-    "$SCRIPT_DIR/check"
-}
-
-main "$@"
--- a/script/projectname
+++ b/script/projectname
@@ -1,12 +0,0 @@
-#!/bin/sh
-# script/projectname: output the name of this project. Our own
-# extension to scripts-to-rule-them-all. Other scripts that need the
-# name (e.g. script/docker) call this, so they can stay identical
-# across all repos.
-set -eu
-
-main() {
-    echo "autistmask"
-}
-
-main "$@"
--- a/script/setup
+++ b/script/setup
@@ -1,13 +0,0 @@
-#!/bin/sh
-# script/setup: set up the repo for development after a fresh clone:
-# installs dependencies and the git pre-commit hook.
-set -eu
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
-
-main() {
-    "$SCRIPT_DIR/bootstrap"
-    "$SCRIPT_DIR/install-precommit"
-}
-
-main "$@"
--- a/script/test
+++ b/script/test
@@ -1,13 +0,0 @@
-#!/bin/sh
-# script/test: run the test suite.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-main() {
-    cd "$ROOT"
-    echo "Running tests..."
-    timeout 30 yarn run test 2>&1
-}
-
-main "$@"
--- a/scripts/apply-enrichment.mjs
+++ b/scripts/apply-enrichment.mjs
@@ -1,161 +0,0 @@
-#!/usr/bin/env node
-// Apply enrichment data to tokenList.js: add name + url fields to each token.
-
-import { readFileSync, writeFileSync } from "fs";
-
-const enrichment = JSON.parse(
-    readFileSync("scripts/token-enrichment.json", "utf8"),
-);
-
-// Well-known URLs for major tokens not in ethereum-lists.
-// These are official project websites verified from public sources.
-const EXTRA_URLS = {
-    "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2": "https://weth.io",
-    "0xdAC17F958D2ee523a2206206994597C13D831ec7": "https://tether.to",
-    "0xB8c77482e45F1F44dE1745F52C74426C631bDD52": "https://www.bnbchain.org",
-    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48": "https://www.circle.com/usdc",
-    "0xdC035D45d973E3EC169d2276DDab16f1e407384F": "https://sky.money",
-    "0x2AF5D2aD76741191D15Dfe7bF6aC92d4Bd912Ca3": "https://www.bitfinex.com",
-    "0x514910771AF9Ca656af840dff83E8264EcF986CA": "https://chain.link",
-    "0x4c9EDD5852cd905f086C759E8383e09bff1E68B3": "https://ethena.fi",
-    "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d":
-        "https://www.worldlibertyfinancial.com",
-    "0x6B175474E89094C44Da98b954EedeAC495271d0F": "https://makerdao.com",
-    "0x6c3ea9036406852006290770BEdFcAbA0e23A0e8":
-        "https://www.paypal.com/us/digital-wallet/manage-money/crypto/pyusd",
-    "0x95aD61b0a150d79219dCF64E1E6Cc01f0B64C4cE": "https://shibatoken.com",
-    "0xdA5e1988097297dCdc1f90D4dFE7909e847CBeF6":
-        "https://www.worldlibertyfinancial.com",
-    "0xA0b73E1Ff0B80914AB6fe0444E65848C4C34450b": "https://crypto.com",
-    "0x582d872A1B094FC48F5DE31D3B73F2D9bE47def1": "https://ton.org",
-    "0x68749665FF8D2d112Fa859AA293F07A622782F38": "https://gold.tether.to",
-    "0x196C20DA81Fbc324EcdF55501e95Ce9f0bD84d14": "https://polkadot.network",
-    "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984": "https://uniswap.org",
-    "0x45804880De22913dAFE09f4980848ECE6EcbAf78":
-        "https://www.paxos.com/paxgold",
-    "0x3c3a81e81dc49A522A592e7622A7E711c06bf354": "https://www.mantle.xyz",
-    "0x7Fc66500c84A76Ad7e9c93437bFc5Ac33E2DDaE9": "https://aave.com",
-    "0x75231F58b43240C9718Dd58B4967c5114342a86c": "https://www.okx.com",
-    "0x6982508145454Ce325dDbE47a25d4ec3d2311933": "https://www.pepe.vip",
-    "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599": "https://wbtc.network",
-    "0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84": "https://lido.fi",
-    "0x5A98FcBEA516Cf06857215779Fd812CA3beF1B32": "https://lido.fi",
-    "0xC18360217D8F7Ab5e7c516566761Ea12Ce7F9D72": "https://ens.domains",
-    "0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0": "https://polygon.technology",
-    "0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2": "https://makerdao.com",
-    "0xD533a949740bb3306d119CC777fa900bA034cd52": "https://curve.fi",
-    "0x111111111117dC0aa78b770fA6A738034120C302": "https://1inch.io",
-    "0x163f8C2467924be0ae7B5347228CABF260318753": "https://worldcoin.org",
-    "0xba100000625a3754423978a60c9317c58a424e3D": "https://balancer.fi",
-    "0xC011a73ee8576Fb46F5E1c5751cA3B9Fe0af2a6F": "https://synthetix.io",
-    "0x1a7e4e63778B4f12a199C062f3eFdD288afCBce8": "https://www.euler.finance",
-    "0xBBbbCA6A901c926F240b89EacB641d8Aec7AEafD": "https://loopring.org",
-    "0xC669928185DbCE49d2230CC9B0979BE6DC797957": "https://bitstable.finance",
-    "0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0": "https://lido.fi",
-    "0xBe9895146f7AF43049ca1c1AE358B0541Ea49704":
-        "https://www.coinbase.com/cbeth",
-    "0xfAbA6f8e4a5E8Ab82F62fe7C39859FA577269BE3": "https://ondo.finance",
-    "0x0C10bF8FcB7Bf5412187A595ab97a3609160b5c6": "https://decentraland.org",
-    "0x6De037ef9aD2725EB40118Bb1702EBb27e4Aeb24": "https://www.render.com",
-    "0x4a220E6096B25EADb88358cb44068A3248254675": "https://www.quant.network",
-    "0xba5BDe662c17e2aDFF1075610382B9B691296350": "https://superrare.com",
-    "0x15D4c048F83bd7e37d49eA4C83a07267Ec4203dA": "https://galxe.com",
-    "0xc00e94Cb662C3520282E6f5717214004A7f26888": "https://compound.finance",
-    "0xE41d2489571d322189246DaFA5ebDe1F4699F498": "https://0x.org",
-    "0x0bc529c00C6401aEF6D220BE8C6Ea1667F6Ad93e": "https://yearn.fi",
-    "0x6fB3e0A217407EFFf7Ca062D46c26E5d60a14d69": "https://iotex.io",
-    "0xD31a59c85aE9D8edEFec411D448f90841571b89c": "https://solana.com",
-    "0xa1faa113cbE53436Df28FF0aEe54275c13B40975": "https://alphafinance.io",
-    "0xF57e7e7C23978C3cAEC3C3548E3D615c346e79fF": "https://immutable.com",
-    "0x0f5D2fB29fb7d3CFeE444a200298f468908cC942": "https://decentraland.org",
-    "0x3845badAde8e6dFF049820680d1F14bD3903a5d0": "https://www.sandbox.game",
-    "0x4d224452801ACEd8B2F0aebE155379bb5D594381": "https://apecoin.com",
-    "0x6810e776880C02933D47DB1b9fc05908e5386b96": "https://gnosis.io",
-    "0x5f98805A4E8be255a32880FDeC7F6728C6568bA0": "https://www.liquity.org",
-    "0xd26114cd6EE289AccF82350c8d8487fedB8A0C07": "https://omg.network",
-    "0x0D8775F648430679A709E98d2b0Cb6250d2887EF":
-        "https://basicattentiontoken.org",
-    "0xc944E90C64B2c07662A292be6244BDf05Cda44a7": "https://thegraph.com",
-    "0x1985365e9f78359a9B6AD760e32412f4a445E862": "https://augur.net",
-    "0x4E15361FD6b4BB609Fa63C81A2be19d873717870": "https://fantom.foundation",
-    "0x853d955aCEf822Db058eb8505911ED77F175b99e": "https://frax.finance",
-    "0x0000000000085d4780B73119b644AE5ecd22b376": "https://www.trueusd.com",
-    "0x0cEC1A9154Ff802e7934Fc916Ed7Ca50bDE6844e": "https://polymesh.network",
-    "0x956F47F50A910163D8BF957Cf5846D573E7f87CA": "https://fei.money",
-    "0x3432B6A60D23Ca0dFCa7761B7ab56459D9C964D0": "https://frax.finance",
-    "0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E": "https://curve.fi",
-    "0x0100546F2cD4C9D97f798fFC9755E47865FF7Ee6": "https://alchemix.fi",
-    "0x808507121B80c02388fAd14726482e061B8da827": "https://pendle.finance",
-    "0xCa14007Eff0dB1f8135f4C25B34De49AB0d42766": "https://starknet.io",
-    "0x8457CA5040ad67fdebbCC8EdCE889A335Bc0fbFB": "https://alt.layer",
-    "0x4C19596f5aAfF459fA38B0f7eD92F11AE6543784": "https://www.truflation.com",
-    "0xB50721BCf8d664c30412Cfbc6cf7a15145234ad1": "https://arbitrum.io",
-    "0x912CE59144191C1204E64559FE8253a0e49E6548": "https://arbitrum.io",
-    "0x6985884C4392D348587B19cb9eAAf157F13271cd": "https://layerzero.network",
-    "0xFe0c30065B384F05761f15d0CC899D4F9F9Cc0eB": "https://ethfi.org",
-    "0x18084fbA666a33d37592fA2633fD49a74DD93a88": "https://tbtc.network",
-    "0x9D39A5DE30e57443BfF2A8307A4256c8797A3497": "https://suilend.fi",
-    "0x5283D291DBCF85356A21bA090E6db59121208b44": "https://blur.io",
-    "0x43Dfc4159D86F3A37A5A4B3D4580b888ad7d4DDd": "https://dydx.exchange",
-    "0xCf0C122c6b73ff809C693DB761e7BaeBe62b6a2E": "https://floki.com",
-    "0xe53EC727dbDEB9E2d5456c3be40cFF031AB40A55": "https://superfarm.com",
-    "0x32353A6C91143bfd6C7d363B546e62a9A2489A20": "https://www.agora.finance",
-    "0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c": "https://www.euro-coin.com",
-    "0x1a03eF3d1a80b5f214e468ACD97F55714E049393": "https://gemspad.io",
-    "0x7122985656e38BDC0302Db86685bb972b145bD3C": "https://stone.fi",
-    "0xa35923162C49cF95e6BF26623385eb431ad920D3": "https://www.turbo-eth.com",
-    "0xdBdb4d16EdA451D0503b854CF79D55697F90c8DF": "https://alchemix.fi",
-    "0x08c32b0726C5684024ea6e141C50aDe9690bBdcc": "https://stratis.io",
-    "0x65Ef703f5594D2573eb71Aaf55BC0CB548492df4": "https://multichain.org",
-    "0x1151CB3d861920e07a38e03eEAd12C32178567F6": "https://bonk.com",
-    "0x090185f2135308BaD17527004364eBcC2D37e5F6": "https://spell.club",
-    "0xAf5191B0De278C7286d6C7CC6ab6BB8A73bA2Cd6": "https://stargate.finance",
-};
-
-// Apply extra URLs where enrichment has none
-for (const [addr, url] of Object.entries(EXTRA_URLS)) {
-    const e = enrichment[addr];
-    if (e && !e.url) {
-        e.url = url;
-    }
-}
-
-// Read original tokenList.js
-const original = readFileSync("src/shared/tokenList.js", "utf8");
-
-// Replace each token block: add name and url after decimals
-let result = original;
-let replacements = 0;
-
-for (const [addr, data] of Object.entries(enrichment)) {
-    // Escape special regex characters in the address
-    const escaped = addr.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
-
-    // Match the token block: { address: "...", symbol: "...", decimals: N, }
-    // The closing }, may have trailing whitespace
-    const blockRe = new RegExp(
-        `(\\{\\s*address:\\s*"${escaped}",\\s*symbol:\\s*"[^"]+",\\s*decimals:\\s*\\d+),?(\\s*\\})`,
-    );
-
-    const match = result.match(blockRe);
-    if (!match) {
-        console.error(`WARNING: Could not find block for ${addr}`);
-        continue;
-    }
-
-    // Build replacement: original fields + name + url
-    const nameEscaped = data.name.replace(/\\/g, "\\\\").replace(/"/g, '\\"');
-    const urlEscaped = data.url.replace(/\\/g, "\\\\").replace(/"/g, '\\"');
-    const replacement =
-        match[1] +
-        `,\n        name: "${nameEscaped}",` +
-        `\n        url: "${urlEscaped}",` +
-        match[2];
-
-    result = result.replace(blockRe, replacement);
-    replacements++;
-}
-
-console.error(`Applied ${replacements} enrichments to tokenList.js`);
-writeFileSync("src/shared/tokenList.js", result);
-console.error("Done!");
--- a/scripts/enrich-tokens.mjs
+++ b/scripts/enrich-tokens.mjs
@@ -1,87 +0,0 @@
-#!/usr/bin/env node
-// Temporary script: fetch name + homepage URL for every token in tokenList.js
-// Phase 1: CoinGecko /coins/list (1 bulk call) for names — gets 100%
-// Phase 2: ethereum-lists GitHub repo for project URLs — gets ~15%
-
-import { readFileSync, writeFileSync } from "fs";
-
-const src = readFileSync("src/shared/tokenList.js", "utf8");
-
-const tokens = [];
-const re =
-    /\{\s*address:\s*"(0x[a-fA-F0-9]{40})",\s*symbol:\s*"([^"]+)",\s*decimals:\s*(\d+)/g;
-let m;
-while ((m = re.exec(src)) !== null) {
-    tokens.push({ address: m[1], symbol: m[2], decimals: parseInt(m[3]) });
-}
-console.error(`Parsed ${tokens.length} tokens`);
-
-const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
-
-// --- Phase 1: bulk names from CoinGecko ---
-console.error("Fetching CoinGecko coins list...");
-const listResp = await fetch(
-    "https://api.coingecko.com/api/v3/coins/list?include_platform=true",
-);
-if (!listResp.ok) throw new Error(`CoinGecko list HTTP ${listResp.status}`);
-const coins = await listResp.json();
-
-const addrMap = new Map();
-for (const coin of coins) {
-    const eth = (coin.platforms?.ethereum || "").toLowerCase().trim();
-    if (eth && eth.startsWith("0x")) {
-        addrMap.set(eth, { name: coin.name, id: coin.id });
-    }
-}
-console.error(`CoinGecko map: ${addrMap.size} Ethereum tokens`);
-
-const enriched = new Map();
-for (const t of tokens) {
-    const info = addrMap.get(t.address.toLowerCase());
-    enriched.set(t.address, { name: info?.name || t.symbol, url: "" });
-}
-console.error(
-    `Matched ${[...enriched.values()].filter((e) => e.name).length}/${tokens.length} names`,
-);
-
-// --- Phase 2: ethereum-lists GitHub for URLs ---
-console.error("Fetching URLs from ethereum-lists GitHub...");
-const CONCURRENT = 10;
-let urlsFound = 0;
-
-for (let i = 0; i < tokens.length; i += CONCURRENT) {
-    const batch = tokens.slice(i, i + CONCURRENT);
-    await Promise.allSettled(
-        batch.map(async (t) => {
-            try {
-                const r = await fetch(
-                    `https://raw.githubusercontent.com/ethereum-lists/tokens/master/tokens/eth/${t.address}.json`,
-                );
-                if (!r.ok) return;
-                const data = await r.json();
-                const website = (data.website || "").trim();
-                if (website && website !== "https://") {
-                    enriched.get(t.address).url = website;
-                    urlsFound++;
-                }
-            } catch {
-                // ignore
-            }
-        }),
-    );
-    if (i % 100 === 0) {
-        console.error(
-            `  GitHub: ${Math.min(i + CONCURRENT, tokens.length)}/${tokens.length}, ${urlsFound} URLs`,
-        );
-    }
-    await sleep(200);
-}
-console.error(`Phase 2 done: ${urlsFound} URLs from ethereum-lists`);
-
-// --- Output ---
-const output = {};
-for (const [addr, e] of enriched) {
-    output[addr] = { name: e.name, url: e.url };
-}
-writeFileSync("scripts/token-enrichment.json", JSON.stringify(output, null, 2));
-console.error(`Done! ${tokens.length} names, ${urlsFound} URLs.`);
--- a/scripts/token-enrichment.json
+++ b/scripts/token-enrichment.json
--- a/src/background/index.js
+++ b/src/background/index.js
@@ -2,16 +2,12 @@
 // Handles EIP-1193 RPC requests from content scripts and proxies
 // non-sensitive calls to the configured Ethereum JSON-RPC endpoint.

-const { DEFAULT_RPC_URL } = require("../shared/constants");
-const { SUPPORTED_CHAIN_IDS, networkByChainId } = require("../shared/networks");
-const { onChainSwitch } = require("../shared/chainSwitch");
-const { getBytes } = require("ethers");
 const {
-    state,
-    loadState,
-    saveState,
-    currentNetwork,
-} = require("../shared/state");
+    ETHEREUM_MAINNET_CHAIN_ID,
+    DEFAULT_RPC_URL,
+} = require("../shared/constants");
+const { getBytes } = require("ethers");
+const { state, loadState, saveState } = require("../shared/state");
 const { refreshBalances, getProvider } = require("../shared/balances");
 const { debugFetch } = require("../shared/log");
 const { decryptWithPassword } = require("../shared/vault");
@@ -333,43 +329,31 @@ async function handleRpc(method, params, origin) {
    }

    if (method === "eth_chainId") {
-        return { result: currentNetwork().chainId };
+        return { result: ETHEREUM_MAINNET_CHAIN_ID };
    }

    if (method === "net_version") {
-        return { result: currentNetwork().networkVersion };
+        return { result: "1" };
    }

    if (method === "wallet_switchEthereumChain") {
        const chainId = params?.[0]?.chainId;
-        if (chainId === currentNetwork().chainId) {
-            return { result: null };
-        }
-        if (SUPPORTED_CHAIN_IDS.has(chainId)) {
-            const target = networkByChainId(chainId);
-            await onChainSwitch(target.id);
-            broadcastChainChanged(target.chainId);
+        if (chainId === ETHEREUM_MAINNET_CHAIN_ID) {
            return { result: null };
        }
        return {
            error: {
                code: 4902,
-                message:
-                    "AutistMask supports Ethereum Mainnet and Sepolia Testnet only.",
+                message: "AutistMask only supports Ethereum mainnet.",
            },
        };
    }

    if (method === "wallet_addEthereumChain") {
-        const chainId = params?.[0]?.chainId;
-        if (SUPPORTED_CHAIN_IDS.has(chainId)) {
-            return { result: null };
-        }
        return {
            error: {
                code: 4902,
-                message:
-                    "AutistMask supports Ethereum Mainnet and Sepolia Testnet only.",
+                message: "AutistMask only supports Ethereum mainnet.",
            },
        };
    }
@@ -515,27 +499,6 @@ async function handleRpc(method, params, origin) {
    return { error: { message: "Unsupported method: " + method } };
 }

-// Broadcast chainChanged to all tabs when the network is switched.
-function broadcastChainChanged(chainId) {
-    tabsApi.query({}, (tabs) => {
-        for (const tab of tabs) {
-            tabsApi.sendMessage(
-                tab.id,
-                {
-                    type: "AUTISTMASK_EVENT",
-                    eventName: "chainChanged",
-                    data: chainId,
-                },
-                () => {
-                    if (runtime.lastError) {
-                        // expected for tabs without our content script
-                    }
-                },
-            );
-        }
-    });
-}
-
 // Broadcast accountsChanged to all tabs, respecting per-address permissions
 async function broadcastAccountsChanged() {
    // Clear non-remembered approvals on address switch
--- a/src/content/inpage.js
+++ b/src/content/inpage.js
@@ -2,10 +2,7 @@
 // Creates window.ethereum (EIP-1193 provider) and announces via EIP-6963.

 (function () {
-    // Defaults to mainnet; updated dynamically via eth_chainId on init and
-    // chainChanged events from the extension.
-    let currentChainId = "0x1";
-    let currentNetworkVersion = "1";
+    const CHAIN_ID = "0x1"; // Ethereum mainnet

    const listeners = {};
    let nextId = 1;
@@ -31,12 +28,6 @@
        if (event.source !== window) return;
        if (event.data?.type !== "AUTISTMASK_EVENT") return;
        const { eventName, data } = event.data;
-        if (eventName === "chainChanged") {
-            currentChainId = data;
-            currentNetworkVersion = String(parseInt(data, 16));
-            provider.chainId = currentChainId;
-            provider.networkVersion = currentNetworkVersion;
-        }
        emit(eventName, data);
    });

@@ -66,8 +57,8 @@
    const provider = {
        isAutistMask: true,
        isMetaMask: true, // compatibility — many dApps check this
-        chainId: currentChainId,
-        networkVersion: currentNetworkVersion,
+        chainId: CHAIN_ID,
+        networkVersion: "1",
        selectedAddress: null,

        async request(args) {
@@ -84,12 +75,6 @@
                        ? result[0]
                        : null;
            }
-            if (args.method === "eth_chainId" && result) {
-                currentChainId = result;
-                currentNetworkVersion = String(parseInt(result, 16));
-                provider.chainId = currentChainId;
-                provider.networkVersion = currentNetworkVersion;
-            }
            return result;
        },

@@ -204,19 +189,4 @@

    window.addEventListener("eip6963:requestProvider", announceProvider);
    announceProvider();
-
-    // Fetch the current chain ID from the extension on load so the provider
-    // reflects the selected network immediately (covers Sepolia etc.).
-    sendRequest({ method: "eth_chainId", params: [] })
-        .then((chainId) => {
-            if (chainId) {
-                currentChainId = chainId;
-                currentNetworkVersion = String(parseInt(chainId, 16));
-                provider.chainId = currentChainId;
-                provider.networkVersion = currentNetworkVersion;
-            }
-        })
-        .catch(() => {
-            // Best-effort — keep defaults.
-        });
 })();
--- a/src/popup/index.html
+++ b/src/popup/index.html
@@ -882,24 +882,6 @@
                    </div>
                </div>

-                <div class="bg-well p-3 mx-1 mb-3">
-                    <h3 class="font-bold mb-1">Network</h3>
-                    <p class="text-xs text-muted mb-1">
-                        Select the Ethereum network. Switching networks will
-                        update the RPC and Blockscout endpoints to their
-                        defaults.
-                    </p>
-                    <div class="text-xs flex items-center gap-1">
-                        <select
-                            id="settings-network"
-                            class="border border-border p-1 bg-bg text-fg text-xs cursor-pointer"
-                        >
-                            <option value="mainnet">Ethereum Mainnet</option>
-                            <option value="sepolia">Sepolia Testnet</option>
-                        </select>
-                    </div>
-                </div>
-
                <div class="bg-well p-3 mx-1 mb-3">
                    <h3 class="font-bold mb-1">Ethereum RPC</h3>
                    <p class="text-xs text-muted mb-1">
--- a/src/popup/index.js
+++ b/src/popup/index.js
@@ -2,22 +2,10 @@
 // Loads state, initializes views, triggers first render.

 const { DEBUG } = require("../shared/constants");
-const {
-    state,
-    saveState,
-    loadState,
-    currentNetwork,
-} = require("../shared/state");
+const { state, saveState, loadState } = require("../shared/state");
 const { refreshPrices } = require("../shared/prices");
 const { refreshBalances } = require("../shared/balances");
-const {
-    $,
-    showView,
-    setRenderMain,
-    pushCurrentView,
-    goBack,
-    clearViewStack,
-} = require("./views/helpers");
+const { $, showView } = require("./views/helpers");
 const { applyTheme } = require("./theme");

 const home = require("./views/home");
@@ -65,42 +53,15 @@ async function doRefreshAndRender() {
 const ctx = {
    renderWalletList,
    doRefreshAndRender,
-    showAddWalletView: () => {
-        pushCurrentView();
-        addWallet.show();
-    },
-    showAddressDetail: () => {
-        pushCurrentView();
-        addressDetail.show();
-    },
-    showAddressToken: () => {
-        pushCurrentView();
-        addressToken.show();
-    },
-    showAddTokenView: () => {
-        pushCurrentView();
-        addToken.show();
-    },
-    showConfirmTx: (txInfo) => {
-        pushCurrentView();
-        confirmTx.show(txInfo);
-    },
-    showReceive: () => {
-        pushCurrentView();
-        receive.show();
-    },
-    showTransactionDetail: (tx) => {
-        pushCurrentView();
-        transactionDetail.show(tx);
-    },
-    showSettingsView: () => {
-        pushCurrentView();
-        settings.show();
-    },
-    showSettingsAddTokenView: () => {
-        pushCurrentView();
-        settingsAddToken.show();
-    },
+    showAddWalletView: () => addWallet.show(),
+    showAddressDetail: () => addressDetail.show(),
+    showAddressToken: () => addressToken.show(),
+    showAddTokenView: () => addToken.show(),
+    showConfirmTx: (txInfo) => confirmTx.show(txInfo),
+    showReceive: () => receive.show(),
+    showTransactionDetail: (tx) => transactionDetail.show(tx),
+    showSettingsView: () => settings.show(),
+    showSettingsAddTokenView: () => settingsAddToken.show(),
 };

 // Views that can be fully re-rendered from persisted state.
@@ -206,25 +167,18 @@ function fallbackView() {
 }

 async function init() {
-    await loadState();
-    applyTheme(state.theme);
-
-    const net = currentNetwork();
-    if (DEBUG || net.isTestnet) {
+    if (DEBUG) {
        const banner = document.createElement("div");
        banner.id = "debug-banner";
-        if (DEBUG && net.isTestnet) {
-            banner.textContent = "DEBUG / INSECURE [TESTNET]";
-        } else if (net.isTestnet) {
-            banner.textContent = "[TESTNET]";
-        } else {
        banner.textContent = "DEBUG / INSECURE";
-        }
        banner.style.cssText =
            "background:#c00;color:#fff;text-align:center;font-size:10px;padding:1px 0;font-family:monospace;position:sticky;top:0;z-index:9999;";
        document.body.prepend(banner);
    }

+    await loadState();
+    applyTheme(state.theme);
+
    // Auto-default active address
    if (
        state.activeAddress === null &&
@@ -254,15 +208,13 @@ async function init() {
                .getElementById("view-settings")
                .classList.contains("hidden")
        ) {
-            goBack();
+            renderWalletList();
+            showView("main");
            return;
        }
-        pushCurrentView();
        settings.show();
    });

-    setRenderMain(renderWalletList);
-
    welcome.init(ctx);
    addWallet.init(ctx);
    home.init(ctx);
--- a/src/popup/views/addToken.js
+++ b/src/popup/views/addToken.js
@@ -1,4 +1,4 @@
-const { $, showFlash, goBack } = require("./helpers");
+const { $, showView, showFlash } = require("./helpers");
 const { getTopTokens } = require("../../shared/tokenList");
 const { state, saveState } = require("../../shared/state");
 const { lookupTokenInfo } = require("../../shared/balances");
@@ -59,12 +59,7 @@ function init(ctx) {
            });
            await saveState();
            ctx.doRefreshAndRender();
-            // Pop the stack (back to address detail) and re-render it
-            // so the newly added token is visible immediately.
-            if (state.viewStack.length > 0) {
-                state.viewStack.pop();
-            }
-            require("./addressDetail").show();
+            ctx.showAddressDetail();
        } catch (e) {
            const detail = e.shortMessage || e.message || String(e);
            log.errorf("Token lookup failed for", contractAddr, detail);
@@ -74,9 +69,7 @@ function init(ctx) {
        }
    });

-    $("btn-add-token-back").addEventListener("click", () => {
-        goBack();
-    });
+    $("btn-add-token-back").addEventListener("click", ctx.showAddressDetail);
 }

 module.exports = { init, show };
--- a/src/popup/views/addWallet.js
+++ b/src/popup/views/addWallet.js
@@ -1,4 +1,4 @@
-const { $, showView, showFlash, goBack, clearViewStack } = require("./helpers");
+const { $, showView, showFlash } = require("./helpers");
 const {
    generateMnemonic,
    hdWalletFromMnemonic,
@@ -143,7 +143,6 @@ async function importMnemonic(ctx) {
    state.wallets.push(wallet);
    state.hasWallet = true;
    await saveState();
-    clearViewStack();
    ctx.renderWalletList();
    showView("main");

@@ -199,7 +198,6 @@ async function importPrivateKey(ctx) {
    });
    state.hasWallet = true;
    await saveState();
-    clearViewStack();
    ctx.renderWalletList();
    showView("main");

@@ -251,7 +249,6 @@ async function importXprvKey(ctx) {
    state.wallets.push(wallet);
    state.hasWallet = true;
    await saveState();
-    clearViewStack();
    ctx.renderWalletList();
    showView("main");

@@ -300,7 +297,12 @@ function init(ctx) {

    // Back button
    $("btn-add-wallet-back").addEventListener("click", () => {
-        goBack();
+        if (!state.hasWallet) {
+            showView("welcome");
+        } else {
+            ctx.renderWalletList();
+            showView("main");
+        }
    });
 }

--- a/src/popup/views/addressDetail.js
+++ b/src/popup/views/addressDetail.js
@@ -10,8 +10,6 @@ const {
    truncateMiddle,
    renderAddressHtml,
    attachCopyHandlers,
-    goBack,
-    pushCurrentView,
 } = require("./helpers");
 const { state, currentAddress, saveState } = require("../../shared/state");
 const { formatUsd, getAddressValueUsd } = require("../../shared/prices");
@@ -249,7 +247,8 @@ function init(_ctx) {
    ctx = _ctx;

    $("btn-address-back").addEventListener("click", () => {
-        goBack();
+        ctx.renderWalletList();
+        showView("main");
    });

    $("btn-send").addEventListener("click", () => {
@@ -267,7 +266,6 @@ function init(_ctx) {
        $("send-token-static").classList.add("hidden");
        updateSendBalance();
        resetSendValidation();
-        pushCurrentView();
        showView("send");
    });

@@ -297,7 +295,6 @@ function init(_ctx) {
    $("btn-export-privkey").addEventListener("click", () => {
        moreDropdown.classList.add("hidden");
        moreBtn.classList.remove("bg-fg", "text-bg");
-        pushCurrentView();
        const wallet = state.wallets[state.selectedWallet];
        const addr = wallet.addresses[state.selectedAddress];
        const blockieEl = $("export-privkey-jazzicon");
@@ -370,7 +367,7 @@ function init(_ctx) {
    $("btn-export-privkey-back").addEventListener("click", () => {
        $("export-privkey-value").textContent = "";
        $("export-privkey-password").value = "";
-        goBack();
+        show();
    });
 }

--- a/src/popup/views/addressToken.js
+++ b/src/popup/views/addressToken.js
@@ -13,8 +13,6 @@ const {
    balanceLine,
    renderAddressHtml,
    attachCopyHandlers,
-    goBack,
-    pushCurrentView,
 } = require("./helpers");
 const { state, currentAddress, saveState } = require("../../shared/state");
 const { TOKEN_BY_ADDRESS, resolveSymbol } = require("../../shared/tokenList");
@@ -150,7 +148,7 @@ function show() {
    attachCopyHandlers($("address-token-line"));

    // USD total for this token only
-    const usdVal = price ? amount * price : null;
+    const usdVal = price ? amount * price : 0;
    const usdStr = formatUsd(usdVal);
    $("address-token-usd-total").innerHTML = usdStr || "&nbsp;";

@@ -333,7 +331,7 @@ function init(_ctx) {
    });

    $("btn-address-token-back").addEventListener("click", () => {
-        goBack();
+        ctx.showAddressDetail();
    });

    $("btn-address-token-send").addEventListener("click", () => {
@@ -367,7 +365,6 @@ function init(_ctx) {
        attachCopyHandlers($("send-token-static"));
        updateSendBalance();
        resetSendValidation();
-        pushCurrentView();
        showView("send");
    });

--- a/src/popup/views/approval.js
+++ b/src/popup/views/approval.js
@@ -8,9 +8,8 @@ const {
    renderAddressHtml,
    attachCopyHandlers,
 } = require("./helpers");
-const { state, saveState, currentNetwork } = require("../../shared/state");
+const { state, saveState } = require("../../shared/state");
 const { formatEther, formatUnits, Interface, toUtf8String } = require("ethers");
-const { getPrice, formatUsd } = require("../../shared/prices");
 const { ERC20_ABI } = require("../../shared/constants");
 const { TOKEN_BY_ADDRESS } = require("../../shared/tokenList");
 const txStatus = require("./txStatus");
@@ -220,14 +219,8 @@ function showTxApproval(details) {
        $("approve-tx-to").innerHTML = escapeHtml("(contract creation)");
    }

-    const ethValueFormatted = formatTxValue(
-        formatEther(details.txParams.value || "0"),
-    );
-    const ethPrice = getPrice("ETH");
-    const ethUsd = ethPrice ? parseFloat(ethValueFormatted) * ethPrice : null;
-    const usdStr = formatUsd(ethUsd);
    $("approve-tx-value").textContent =
-        ethValueFormatted + " ETH" + (usdStr ? " (" + usdStr + ")" : "");
+        formatTxValue(formatEther(details.txParams.value || "0")) + " ETH";

    // Decode calldata (reuse decoded from above)
    const decodedEl = $("approve-tx-decoded");
--- a/src/popup/views/confirmTx.js
+++ b/src/popup/views/confirmTx.js
@@ -20,9 +20,8 @@ const {
    escapeHtml,
    renderAddressHtml,
    attachCopyHandlers,
-    goBack,
 } = require("./helpers");
-const { state, currentNetwork } = require("../../shared/state");
+const { state } = require("../../shared/state");
 const { getSignerForAddress } = require("../../shared/wallet");
 const { decryptWithPassword } = require("../../shared/vault");
 const { formatUsd, getPrice } = require("../../shared/prices");
@@ -356,7 +355,7 @@ function init(ctx) {
    });

    $("btn-confirm-back").addEventListener("click", () => {
-        goBack();
+        showView("send");
    });
 }

--- a/src/popup/views/deleteWallet.js
+++ b/src/popup/views/deleteWallet.js
@@ -1,4 +1,4 @@
-const { $, showView, showFlash, goBack, clearViewStack } = require("./helpers");
+const { $, showView, showFlash } = require("./helpers");
 const { state, saveState } = require("../../shared/state");
 const { decryptWithPassword } = require("../../shared/vault");

@@ -21,7 +21,7 @@ function init(_ctx) {

    $("btn-delete-wallet-back").addEventListener("click", () => {
        deleteWalletIndex = null;
-        goBack();
+        ctx.showSettingsView();
    });

    $("btn-delete-wallet-confirm").addEventListener("click", async () => {
@@ -77,7 +77,6 @@ function init(_ctx) {
            state.selectedWallet = null;
            state.selectedAddress = null;
            state.activeAddress = null;
-            clearViewStack();
            await saveState();
            showView("welcome");
        } else {
@@ -87,14 +86,8 @@ function init(_ctx) {
            state.activeAddress =
                state.wallets[0].addresses[0]?.address || null;
            await saveState();
-            // Reset stack to [main] so Settings back goes home.
-            // Use require() lazily to avoid circular dependency
-            // (settings.js requires deleteWallet.js).
-            clearViewStack();
-            state.viewStack.push("main");
            ctx.renderWalletList();
-            const settings = require("./settings");
-            settings.show();
+            ctx.showSettingsView();
            showFlash("Wallet deleted.");
        }
    });
--- a/src/popup/views/helpers.js
+++ b/src/popup/views/helpers.js
@@ -6,7 +6,7 @@ const {
    getPrice,
    getAddressValueUsd,
 } = require("../../shared/prices");
-const { state, saveState, currentNetwork } = require("../../shared/state");
+const { state, saveState } = require("../../shared/state");

 // When views are added, removed, or transitions between them change,
 // update the view-navigation documentation in README.md to match.
@@ -59,57 +59,12 @@ function showView(name) {
    clearFlash();
    state.currentView = name;
    saveState();
-    const net = currentNetwork();
-    if (DEBUG || net.isTestnet) {
+    if (DEBUG) {
        const banner = document.getElementById("debug-banner");
        if (banner) {
-            if (DEBUG && net.isTestnet) {
-                banner.textContent =
-                    "DEBUG / INSECURE [TESTNET] (" + name + ")";
-            } else if (net.isTestnet) {
-                banner.textContent = "[TESTNET]";
-            } else {
            banner.textContent = "DEBUG / INSECURE (" + name + ")";
        }
    }
-    }
-}
-
-// Callback to re-render the main/home view when navigating back to it.
-// Set once by index.js via setRenderMain().
-let _renderMain = null;
-
-function setRenderMain(fn) {
-    _renderMain = fn;
-}
-
-// Push the current view onto the navigation stack so goBack() can
-// return to it.  Call this before any forward navigation.
-function pushCurrentView() {
-    if (state.currentView) {
-        state.viewStack.push(state.currentView);
-    }
-}
-
-// Pop the navigation stack and show the previous view.  If the stack
-// is empty, fall back to the main (home) view.
-function goBack() {
-    let target;
-    if (state.viewStack.length > 0) {
-        target = state.viewStack.pop();
-    } else {
-        target = "main";
-    }
-    if (target === "main" && _renderMain) {
-        _renderMain();
-    }
-    showView(target);
-}
-
-// Clear the entire navigation stack (used when resetting to root,
-// e.g. after adding or deleting a wallet).
-function clearViewStack() {
-    state.viewStack = [];
 }

 let flashTimer = null;
@@ -323,7 +278,7 @@ const EXT_ICON =
    `</svg></span>`;

 function etherscanAddressUrl(address) {
-    return `${currentNetwork().explorerUrl}/address/${address}`;
+    return `https://etherscan.io/address/${address}`;
 }

 function etherscanLinkHtml(url) {
@@ -417,10 +372,6 @@ module.exports = {
    showError,
    hideError,
    showView,
-    setRenderMain,
-    pushCurrentView,
-    goBack,
-    clearViewStack,
    showFlash,
    flashCopyFeedback,
    balanceLine,
--- a/src/popup/views/home.js
+++ b/src/popup/views/home.js
@@ -12,7 +12,6 @@ const {
    truncateMiddle,
    renderAddressHtml,
    attachCopyHandlers,
-    pushCurrentView,
 } = require("./helpers");
 const { state, saveState, currentAddress } = require("../../shared/state");
 const {
@@ -382,7 +381,6 @@ function init(ctx) {
        renderSendTokenSelect(addr);
        updateSendBalance();
        resetSendValidation();
-        pushCurrentView();
        showView("send");
    });

--- a/src/popup/views/receive.js
+++ b/src/popup/views/receive.js
@@ -6,9 +6,8 @@ const {
    formatAddressHtml,
    addressTitle,
    attachCopyHandlers,
-    goBack,
 } = require("./helpers");
-const { state, currentAddress, currentNetwork } = require("../../shared/state");
+const { state, currentAddress } = require("../../shared/state");
 const QRCode = require("qrcode");

 function show() {
@@ -45,9 +44,7 @@ function show() {
        warningEl.textContent =
            "This is an ERC-20 token. Only send " +
            symbol +
-            " on " +
-            currentNetwork().name +
-            " to this address. Sending tokens on other networks will result in permanent loss.";
+            " on the Ethereum network to this address. Sending tokens on other networks will result in permanent loss.";
        warningEl.style.visibility = "visible";
    } else {
        warningEl.textContent = "";
@@ -68,7 +65,11 @@ function init(ctx) {
    });

    $("btn-receive-back").addEventListener("click", () => {
-        goBack();
+        if (state.selectedToken) {
+            ctx.showAddressToken();
+        } else {
+            ctx.showAddressDetail();
+        }
    });
 }

--- a/src/popup/views/send.js
+++ b/src/popup/views/send.js
@@ -7,7 +7,6 @@ const {
    escapeHtml,
    renderAddressHtml,
    attachCopyHandlers,
-    goBack,
 } = require("./helpers");
 const { state, currentAddress } = require("../../shared/state");
 let ctx;
@@ -251,7 +250,11 @@ function init(_ctx) {
    $("btn-send-back").addEventListener("click", () => {
        $("send-token").classList.remove("hidden");
        $("send-token-static").classList.add("hidden");
-        goBack();
+        if (state.selectedToken) {
+            ctx.showAddressToken();
+        } else {
+            ctx.showAddressDetail();
+        }
    });
 }

--- a/src/popup/views/settings.js
+++ b/src/popup/views/settings.js
@@ -1,15 +1,7 @@
-const {
-    $,
-    showView,
-    showFlash,
-    escapeHtml,
-    goBack,
-    pushCurrentView,
-} = require("./helpers");
+const { $, showView, showFlash, escapeHtml } = require("./helpers");
 const { applyTheme } = require("../theme");
-const { state, saveState, currentNetwork } = require("../../shared/state");
-const { NETWORKS, SUPPORTED_CHAIN_IDS } = require("../../shared/networks");
-const { onChainSwitch } = require("../../shared/chainSwitch");
+const { state, saveState } = require("../../shared/state");
+const { ETHEREUM_MAINNET_CHAIN_ID } = require("../../shared/constants");
 const { log, debugFetch } = require("../../shared/log");
 const deleteWallet = require("./deleteWallet");

@@ -93,7 +85,6 @@ function renderWalletListSettings() {
    container.querySelectorAll(".btn-delete-wallet").forEach((btn) => {
        btn.addEventListener("click", () => {
            const idx = parseInt(btn.dataset.idx, 10);
-            pushCurrentView();
            deleteWallet.show(idx);
        });
    });
@@ -134,10 +125,6 @@ function renderWalletListSettings() {
 function show() {
    $("settings-rpc").value = state.rpcUrl;
    $("settings-blockscout").value = state.blockscoutUrl;
-    const networkSelect = $("settings-network");
-    if (networkSelect) {
-        networkSelect.value = state.networkId;
-    }
    renderTrackedTokens();
    renderSiteLists();
    renderWalletListSettings();
@@ -181,12 +168,9 @@ function init(ctx) {
                showFlash("Endpoint returned error: " + json.error.message);
                return;
            }
-            const net = currentNetwork();
-            if (json.result !== net.chainId) {
+            if (json.result !== ETHEREUM_MAINNET_CHAIN_ID) {
                showFlash(
-                    "Wrong network (expected " +
-                        net.name +
-                        ", got chain " +
+                    "Wrong network (expected mainnet, got chain " +
                        json.result +
                        ").",
                );
@@ -225,17 +209,6 @@ function init(ctx) {
        showFlash("Saved.");
    });

-    const networkSelect = $("settings-network");
-    if (networkSelect) {
-        networkSelect.addEventListener("change", async () => {
-            const newId = networkSelect.value;
-            const net = await onChainSwitch(newId);
-            $("settings-rpc").value = state.rpcUrl;
-            $("settings-blockscout").value = state.blockscoutUrl;
-            showFlash("Switched to " + net.name + ".");
-        });
-    }
-
    $("settings-show-zero-balances").checked = state.showZeroBalanceTokens;
    $("settings-show-zero-balances").addEventListener("change", async () => {
        state.showZeroBalanceTokens = $("settings-show-zero-balances").checked;
@@ -290,7 +263,8 @@ function init(ctx) {
    );

    $("btn-settings-back").addEventListener("click", () => {
-        goBack();
+        ctx.renderWalletList();
+        showView("main");
    });
 }

--- a/src/popup/views/settingsAddToken.js
+++ b/src/popup/views/settingsAddToken.js
@@ -1,4 +1,4 @@
-const { $, showView, showFlash, goBack } = require("./helpers");
+const { $, showView, showFlash } = require("./helpers");
 const { getTopTokens } = require("../../shared/tokenList");
 const { state, saveState } = require("../../shared/state");
 const { lookupTokenInfo } = require("../../shared/balances");
@@ -84,7 +84,7 @@ function init(_ctx) {
    ctx = _ctx;

    $("btn-settings-addtoken-back").addEventListener("click", () => {
-        goBack();
+        ctx.showSettingsView();
    });

    $("btn-settings-addtoken-select").addEventListener("click", async () => {
--- a/src/popup/views/transactionDetail.js
+++ b/src/popup/views/transactionDetail.js
@@ -14,9 +14,8 @@ const {
    attachCopyHandlers,
    copyableHtml,
    etherscanLinkHtml,
-    goBack,
 } = require("./helpers");
-const { state, currentNetwork } = require("../../shared/state");
+const { state } = require("../../shared/state");
 const { formatEther, formatUnits } = require("ethers");
 const makeBlockie = require("ethereum-blockies-base64");
 const { log, debugFetch } = require("../../shared/log");
@@ -57,7 +56,7 @@ function txAddressHtml(address, ensName, title) {
 }

 function txHashHtml(hash) {
-    const link = `${currentNetwork().explorerUrl}/tx/${hash}`;
+    const link = `https://etherscan.io/tx/${hash}`;
    const extLink = etherscanLinkHtml(link);
    return copyableHtml(hash, "break-all") + extLink;
 }
@@ -134,7 +133,7 @@ function render() {
    if (tokenContractSection && tokenContractEl) {
        if (tx.contractAddress) {
            const dot = addressDotHtml(tx.contractAddress);
-            const link = `${currentNetwork().explorerUrl}/token/${tx.contractAddress}`;
+            const link = `https://etherscan.io/token/${tx.contractAddress}`;
            tokenContractEl.innerHTML =
                `<div class="flex items-center">${dot}` +
                copyableHtml(tx.contractAddress, "break-all") +
@@ -186,7 +185,7 @@ function showDetailField(sectionId, contentId, value) {
 function populateOnChainDetails(txData) {
    // Block number
    if (txData.block_number != null) {
-        const blockLink = `${currentNetwork().explorerUrl}/block/${txData.block_number}`;
+        const blockLink = `https://etherscan.io/block/${txData.block_number}`;
        const blockSection = $("tx-detail-block-section");
        const blockEl = $("tx-detail-block");
        if (blockSection && blockEl) {
@@ -351,7 +350,11 @@ async function loadFullTxDetails(txHash, toAddress, isContractCall) {
 function init(_ctx) {
    ctx = _ctx;
    $("btn-tx-back").addEventListener("click", () => {
-        goBack();
+        if (state.selectedToken) {
+            ctx.showAddressToken();
+        } else {
+            ctx.showAddressDetail();
+        }
    });
 }

--- a/src/popup/views/txStatus.js
+++ b/src/popup/views/txStatus.js
@@ -9,10 +9,9 @@ const {
    attachCopyHandlers,
    copyableHtml,
    etherscanLinkHtml,
-    clearViewStack,
 } = require("./helpers");
 const { TOKEN_BY_ADDRESS } = require("../../shared/tokenList");
-const { state, saveState, currentNetwork } = require("../../shared/state");
+const { state, saveState } = require("../../shared/state");
 const { getProvider } = require("../../shared/balances");
 const { log } = require("../../shared/log");

@@ -37,13 +36,13 @@ function toAddressHtml(address) {
 }

 function txHashHtml(hash) {
-    const link = `${currentNetwork().explorerUrl}/tx/${hash}`;
+    const link = `https://etherscan.io/tx/${hash}`;
    return copyableHtml(hash, "break-all") + etherscanLinkHtml(link);
 }

 function blockNumberHtml(blockNumber) {
    const num = String(blockNumber);
-    const link = `${currentNetwork().explorerUrl}/block/${num}`;
+    const link = `https://etherscan.io/block/${num}`;
    return copyableHtml(num) + etherscanLinkHtml(link);
 }

@@ -111,7 +110,7 @@ function tokenLabel(address) {
 }

 function etherscanTokenLink(address) {
-    return `${currentNetwork().explorerUrl}/token/${address}`;
+    return `https://etherscan.io/token/${address}`;
 }

 function decodedDetailsHtml(decoded) {
@@ -222,16 +221,10 @@ function navigateBack() {
        window.close();
        return;
    }
-    // After a completed transaction, reset the navigation stack
-    // and go directly to the address view (token or detail).
-    // Use require() lazily to call show() without the ctx push wrapper.
-    clearViewStack();
-    state.viewStack.push("main");
    if (state.selectedToken) {
-        state.viewStack.push("address");
-        require("./addressToken").show();
+        ctx.showAddressToken();
    } else {
-        require("./addressDetail").show();
+        ctx.showAddressDetail();
    }
 }

--- a/src/shared/balances.js
+++ b/src/shared/balances.js
@@ -15,15 +15,10 @@ const { KNOWN_SYMBOLS, TOKEN_BY_ADDRESS } = require("./tokenList");

 // Use a static network to skip auto-detection (which can fail and cause
 // "could not coalesce error" on some RPC endpoints like Cloudflare).
-// Accepts an optional networkName ("mainnet" or "sepolia") for the static
-// network hint so ethers picks the right chain parameters.  When omitted,
-// reads the currently selected network from extension state.
-function getProvider(rpcUrl, networkName) {
-    // Lazy require to avoid circular dependency issues at module scope.
-    const { currentNetwork } = require("./state");
-    const name = networkName || currentNetwork().id;
-    const net = Network.from(name);
-    return new JsonRpcProvider(rpcUrl, net, { staticNetwork: net });
+const mainnet = Network.from("mainnet");
+
+function getProvider(rpcUrl) {
+    return new JsonRpcProvider(rpcUrl, mainnet, { staticNetwork: mainnet });
 }

 function formatBalance(wei) {
--- a/src/shared/chainSwitch.js
+++ b/src/shared/chainSwitch.js
@@ -1,57 +0,0 @@
-// Consolidated chain-switch handler.
-//
-// Every state change required when the active network changes is
-// performed here so that callers (settings UI, background
-// wallet_switchEthereumChain, future chain additions) all go
-// through a single code path.
-//
-// Adding a new chain (e.g. ETC) requires only a new entry in
-// networks.js — no per-caller wiring is needed.
-
-const { networkById } = require("./networks");
-const { clearPrices } = require("./prices");
-
-// Switch the active chain and reset all chain-specific cached state.
-// Returns the network configuration object for the new chain.
-async function onChainSwitch(newNetworkId) {
-    const { state, saveState } = require("./state");
-
-    const net = networkById(newNetworkId);
-
-    // --- core identity ---
-    state.networkId = net.id;
-    state.rpcUrl = net.defaultRpcUrl;
-    state.blockscoutUrl = net.defaultBlockscoutUrl;
-
-    // --- price cache ---
-    // Prices are chain-specific (testnet tokens are worthless,
-    // ETC has different pricing, etc.).
-    clearPrices();
-
-    // --- balance / refresh state ---
-    // Reset last-refresh timestamp so the next polling cycle
-    // triggers an immediate balance refresh on the new chain.
-    state.lastBalanceRefresh = 0;
-
-    // Clear per-address balances and token balances so stale data
-    // from the previous chain is never displayed while the first
-    // refresh on the new chain is in flight.
-    for (const wallet of state.wallets) {
-        for (const addr of wallet.addresses) {
-            addr.balance = "0";
-            addr.tokenBalances = [];
-        }
-    }
-
-    // --- chain-specific caches ---
-    // Token holder counts and fraud contract lists are
-    // chain-specific and must not carry over.
-    state.tokenHolderCache = {};
-    state.fraudContracts = [];
-
-    await saveState();
-
-    return net;
-}
-
-module.exports = { onChainSwitch };
--- a/src/shared/constants.js
+++ b/src/shared/constants.js
@@ -3,7 +3,6 @@ const DEBUG_MNEMONIC =
    "cube evolve unfold result inch risk jealous skill hotel bulb night wreck";

 const ETHEREUM_MAINNET_CHAIN_ID = "0x1";
-const ETHEREUM_SEPOLIA_CHAIN_ID = "0xaa36a7";

 const DEFAULT_RPC_URL = "https://ethereum-rpc.publicnode.com";

@@ -38,7 +37,6 @@ module.exports = {
    DEBUG,
    DEBUG_MNEMONIC,
    ETHEREUM_MAINNET_CHAIN_ID,
-    ETHEREUM_SEPOLIA_CHAIN_ID,
    DEFAULT_RPC_URL,
    DEFAULT_BLOCKSCOUT_URL,
    BIP44_ETH_PATH,
--- a/src/shared/etherscanLabels.js
+++ b/src/shared/etherscanLabels.js
@@ -2,6 +2,8 @@
 // Extension users make the requests directly to Etherscan — no proxy needed.
 // This is a best-effort enrichment: network failures return null silently.

+const ETHERSCAN_BASE = "https://etherscan.io/address/";
+
 // Patterns in the page title that indicate a flagged address.
 // Title format: "Fake_Phishing184810 | Address: 0x... | Etherscan"
 const PHISHING_LABEL_PATTERNS = [/^Fake_Phishing/i, /^Phish:/i, /^Exploiter/i];
@@ -72,19 +74,12 @@ function parseEtherscanPage(html) {
 * Returns a warning object if the address is flagged, or null.
 * Network failures return null silently (best-effort check).
 *
- * Uses the current network's explorer URL so the lookup works on both
- * mainnet (etherscan.io) and Sepolia (sepolia.etherscan.io).
- *
 * @param {string} address - Ethereum address to check.
 * @returns {Promise<{type: string, message: string, severity: string}|null>}
 */
 async function checkEtherscanLabel(address) {
    try {
-        // Lazy require to avoid pulling in chrome.storage at module scope
-        // (which breaks unit tests that only exercise parseEtherscanPage).
-        const { currentNetwork } = require("./state");
-        const etherscanBase = currentNetwork().explorerUrl + "/address/";
-        const resp = await fetch(etherscanBase + address, {
+        const resp = await fetch(ETHERSCAN_BASE + address, {
            headers: { Accept: "text/html" },
        });
        if (!resp.ok) return null;
--- a/src/shared/networks.js
+++ b/src/shared/networks.js
@@ -1,57 +0,0 @@
-// Network definitions for supported Ethereum networks.
-// Each network specifies its chain ID, default RPC and Blockscout endpoints,
-// and the block explorer base URL used for address/tx/token/block links.
-
-const NETWORKS = {
-    mainnet: {
-        id: "mainnet",
-        name: "Ethereum Mainnet",
-        chainId: "0x1",
-        networkVersion: "1",
-        nativeCurrency: "ETH",
-        defaultRpcUrl: "https://ethereum-rpc.publicnode.com",
-        defaultBlockscoutUrl: "https://eth.blockscout.com/api/v2",
-        explorerUrl: "https://etherscan.io",
-        isTestnet: false,
-    },
-    sepolia: {
-        id: "sepolia",
-        name: "Sepolia Testnet",
-        chainId: "0xaa36a7",
-        networkVersion: "11155111",
-        nativeCurrency: "SepoliaETH",
-        defaultRpcUrl: "https://ethereum-sepolia-rpc.publicnode.com",
-        defaultBlockscoutUrl: "https://eth-sepolia.blockscout.com/api/v2",
-        explorerUrl: "https://sepolia.etherscan.io",
-        isTestnet: true,
-    },
-};
-
-const SUPPORTED_CHAIN_IDS = new Set(
-    Object.values(NETWORKS).map((n) => n.chainId),
-);
-
-function networkById(id) {
-    return NETWORKS[id] || NETWORKS.mainnet;
-}
-
-function networkByChainId(chainId) {
-    for (const net of Object.values(NETWORKS)) {
-        if (net.chainId === chainId) return net;
-    }
-    return null;
-}
-
-// Build a block explorer link for the given path type and value.
-// type: "address" | "tx" | "token" | "block"
-function explorerLink(network, type, value) {
-    return `${network.explorerUrl}/${type}/${value}`;
-}
-
-module.exports = {
-    NETWORKS,
-    SUPPORTED_CHAIN_IDS,
-    networkById,
-    networkByChainId,
-    explorerLink,
-};
--- a/src/shared/prices.js
+++ b/src/shared/prices.js
@@ -8,13 +8,6 @@ const prices = {};
 let lastFetchedAt = 0;

 async function refreshPrices() {
-    // Testnet tokens have no real market value — skip price fetching
-    // and clear any stale mainnet prices so the UI shows no USD values.
-    const { currentNetwork } = require("./state");
-    if (currentNetwork().isTestnet) {
-        clearPrices();
-        return;
-    }
    const now = Date.now();
    if (now - lastFetchedAt < PRICE_CACHE_TTL) return;
    try {
@@ -26,19 +19,7 @@ async function refreshPrices() {
    }
 }

-// Clear all cached prices and reset the fetch timestamp so the
-// next refreshPrices() call will fetch fresh data.
-function clearPrices() {
-    for (const key of Object.keys(prices)) {
-        delete prices[key];
-    }
-    lastFetchedAt = 0;
-}
-
-// Return the USD price for a symbol, or null on testnet / unknown.
 function getPrice(symbol) {
-    const { currentNetwork } = require("./state");
-    if (currentNetwork().isTestnet) return null;
    return prices[symbol] || null;
 }

@@ -56,8 +37,6 @@ function formatUsd(amount) {
 }

 function getAddressValueUsd(addr) {
-    const { currentNetwork } = require("./state");
-    if (currentNetwork().isTestnet) return null;
    if (!prices.ETH) return null;
    let total = 0;
    const ethBal = parseFloat(addr.balance || "0");
@@ -72,8 +51,6 @@ function getAddressValueUsd(addr) {
 }

 function getWalletValueUsd(wallet) {
-    const { currentNetwork } = require("./state");
-    if (currentNetwork().isTestnet) return null;
    if (!prices.ETH) return null;
    let total = 0;
    for (const addr of wallet.addresses) {
@@ -83,8 +60,6 @@ function getWalletValueUsd(wallet) {
 }

 function getTotalValueUsd(wallets) {
-    const { currentNetwork } = require("./state");
-    if (currentNetwork().isTestnet) return null;
    if (!prices.ETH) return null;
    let total = 0;
    for (const wallet of wallets) {
@@ -96,7 +71,6 @@ function getTotalValueUsd(wallets) {
 module.exports = {
    prices,
    refreshPrices,
-    clearPrices,
    getPrice,
    formatUsd,
    getAddressValueUsd,
--- a/src/shared/state.js
+++ b/src/shared/state.js
@@ -1,7 +1,6 @@
 // State management and extension storage persistence.

 const { DEFAULT_RPC_URL, DEFAULT_BLOCKSCOUT_URL } = require("./constants");
-const { networkById } = require("./networks");

 const storageApi =
    typeof browser !== "undefined"
@@ -12,7 +11,6 @@ const DEFAULT_STATE = {
    hasWallet: false,
    wallets: [],
    trackedTokens: [],
-    networkId: "mainnet",
    rpcUrl: DEFAULT_RPC_URL,
    blockscoutUrl: DEFAULT_BLOCKSCOUT_URL,
    lastBalanceRefresh: 0,
@@ -38,20 +36,13 @@ const state = {
    selectedAddress: null,
    selectedToken: null,
    viewData: {},
-    viewStack: [],
 };

-// Return the network configuration for the currently selected network.
-function currentNetwork() {
-    return networkById(state.networkId);
-}
-
 async function saveState() {
    const persisted = {
        hasWallet: state.hasWallet,
        wallets: state.wallets,
        trackedTokens: state.trackedTokens,
-        networkId: state.networkId,
        rpcUrl: state.rpcUrl,
        blockscoutUrl: state.blockscoutUrl,
        lastBalanceRefresh: state.lastBalanceRefresh,
@@ -73,7 +64,6 @@ async function saveState() {
        selectedAddress: state.selectedAddress,
        selectedToken: state.selectedToken,
        viewData: state.viewData,
-        viewStack: state.viewStack,
    };
    await storageApi.set({ autistmask: persisted });
 }
@@ -85,7 +75,6 @@ async function loadState() {
        state.hasWallet = saved.hasWallet;
        state.wallets = saved.wallets || [];
        state.trackedTokens = saved.trackedTokens || [];
-        state.networkId = saved.networkId || DEFAULT_STATE.networkId;
        state.rpcUrl = saved.rpcUrl || DEFAULT_STATE.rpcUrl;
        state.blockscoutUrl =
            saved.blockscoutUrl || DEFAULT_STATE.blockscoutUrl;
@@ -135,7 +124,6 @@ async function loadState() {
            saved.selectedAddress !== undefined ? saved.selectedAddress : null;
        state.selectedToken = saved.selectedToken || null;
        state.viewData = saved.viewData || {};
-        state.viewStack = Array.isArray(saved.viewStack) ? saved.viewStack : [];
    }
 }

@@ -146,10 +134,4 @@ function currentAddress() {
    return state.wallets[state.selectedWallet].addresses[state.selectedAddress];
 }

-module.exports = {
-    state,
-    saveState,
-    loadState,
-    currentAddress,
-    currentNetwork,
-};
+module.exports = { state, saveState, loadState, currentAddress };