Match .gitignore, .editorconfig and .golangci.yml to sneak/prompts (closes #174)

REPO_POLICIES.md asks for the standard .gitignore and .editorconfig
followed by the repository's own entries, and for the canonical
.golangci.yml. The shared parts and .golangci.yml now match the
sneak/prompts copies at 065357920a0a09bd736bf33d4cb5ce935fdc2328 byte
for byte. .editorconfig has no entries of its own left, since the
standard file now carries the [*.go] section. .golangci.yml disables
canonicalheader, as the canonical copy does.

Model: opus-5-5

TODO.md

@@ -9,12 +9,11 @@
 
 # Status
 
-pre-1.0. Release candidates are tagged on `next`, the first being `v1.0.0-rc1`;
+pre-1.0. No git tags. `main` is the stable branch and `next` the development
-`git tag --merged origin/next` lists them. `main` is the stable branch and
+branch, which every PR targets. The frontend and the Go backend ship as one
-`next` the development branch, which every PR targets. The frontend and the Go
+Docker image, and the Gitea workflow `.gitea/workflows/check.yml` runs
-backend ship as one Docker image, and the Gitea workflow
+`script/cibuild` on every push, and cancels the older run on the same branch.
-`.gitea/workflows/check.yml` runs `script/cibuild` on every push, and cancels
+Working toward 1.0.0.
-the older run on the same branch. Working toward 1.0.0.
 
 # Next Step
 
@@ -30,15 +29,6 @@ Run `make frontend-viewport-test` in CI as its own step; it is not part of
   the standard file alone, which now carries the `[*.go]` section.
   `.golangci.yml` disables `canonicalheader`, as the canonical copy does,
   because golangci-lint v2.14.0 misses its findings at random
-- 2026-10-19: `package.json` has no `version` field and is marked
-  `"private": true` ([#158](https://git.eeqj.de/sneak/netwatch/issues/158)). It
-  said `1.0.0`, a release that has not been made, and nothing read it; the git
-  tag is the one version, which the image and `make build` take from
-  `git describe --tags`. The package is never published
-- 2026-10-19: Status names `v1.0.0-rc1`, the first release candidate, and says
-  release candidates are tagged on `next`, where it said there were no git tags
-  ([#157](https://git.eeqj.de/sneak/netwatch/issues/157)). The rest of Status
-  matches the tree
 - 2026-10-19: `netwatch-server` starts the server only when given no arguments
   ([#179](https://git.eeqj.de/sneak/netwatch/issues/179)). `check-cidr CIDR` and
   `prepare-data-dir DATA_DIR` behave as before; any other arguments, such as a

package.json

@@ -1,6 +1,6 @@
 {
     "name": "netwatch",
-    "private": true,
+    "version": "1.0.0",
     "description": "Real-time network latency monitor SPA",
     "type": "module",
     "scripts": {