Remove the no-op --collection option from get and get-thumb (closes #241)

Both commands listed `--collection <id>` as accepted and ignored. It now
is refused as an unknown option, and the README no longer mentions it.

Model: opus-5-5

Makefile

@@ -26,8 +26,10 @@ check:
 build:
 	@script/build
 
-build-bin:
-	@script/build-bin
+# Bundles the built dist/, so the binary reports the version script/build
+# stamped.
+build-bin: build
+	nix-shell -p bun --run "bun build dist/bin/quak.js --compile --outfile bin/quak"
 
 install: build-bin
 	mkdir -p ~/bin

README.md

@@ -135,12 +135,10 @@ requests. The "Library reference" below covers both.
 ## Running the backup from cron
 
 `quak backup` never prompts, so cron can run it. `make install` builds quak as
-one binary and copies it to `~/bin/quak`. It uses bun, a JavaScript runtime, to
-bundle the built `dist/` into one executable. Besides what Getting Started
-needs, `make install` needs `make`. On Linux it downloads bun from GitHub with
-`curl` and unpacks it with `unzip`. It checks the download against a SHA-256
-hash in the repo. On macOS it runs bun through `nix-shell -p bun`, so it needs
-[nix](https://nixos.org/download).
+one binary and copies it to `~/bin/quak`. Besides what Getting Started needs,
+`make install` needs `make` and [nix](https://nixos.org/download). It uses bun,
+a JavaScript runtime, to bundle the built `dist/` into one executable. It runs
+bun through `nix-shell -p bun`.
 
 Log in once with `~/bin/quak`, as the user the cron job will run as:
 
@@ -1773,8 +1771,6 @@ standard. The others are additions to it.
   `package.json` declares (`main`, `types`, `bin`) were written, and make the
   command line executable.
 - `script/version`: print the version `script/build` stamps (see "Version").
-- `script/build-bin`: run `script/build`, then bundle the built `dist/` into one
-  binary, `bin/quak`, with bun (see "Running the backup from cron").
 - `script/test`: run the test suite, by building the `test` phase of the
   `Dockerfile`. Requires Docker.
 - `script/lint`: run eslint and a prettier check, by building the `lint` phase
@@ -1803,7 +1799,8 @@ The Makefile targets are:
 - `make build`: runs `script/build`.
 - `make docker`: runs `script/docker`.
 - `make hooks`: runs `script/install-precommit`.
-- `make build-bin`: runs `script/build-bin`.
+- `make build-bin`: bundles the built `dist/` into one binary, `bin/quak`. It
+  runs bun through `nix-shell -p bun`.
 - `make install`: runs `make build-bin` and copies the binary to `~/bin/quak`.
 - `make dev`: runs the TypeScript compiler in watch mode.
 - `make clean`: removes `dist/`, `coverage/`, `.vitest-cache/` and the
@@ -1911,10 +1908,9 @@ These apply to people and to coding agents alike.
     - container images by digest;
     - the nvm archive `script/bootstrap` downloads, and the Python packages
       `bin/clip-keyword-vectors` installs, by SHA-256 hash;
-    - bun, which `script/build-bin` downloads on Linux, by SHA-256 hash;
     - Node and yarn, when `script/bootstrap` installs them, by version.
 - Not pinned:
-    - bun on macOS, which `script/build-bin` takes from `nix-shell -p bun`;
+    - bun, which `make build-bin` takes from `nix-shell -p bun`;
     - `make` and `git`, which `script/bootstrap` installs from the system
       package manager when they are missing, as every `Dockerfile` stage does;
     - `bash` and `curl`, which `script/bootstrap` installs the same way when it

script/build-bin

@@ -1,56 +0,0 @@
-#!/bin/sh
-# script/build-bin: run script/build, then bundle the built dist/ into one
-# executable, bin/quak, which reports the version script/build stamped. Our own
-# extension to scripts-to-rule-them-all.
-#
-# bun compiles the binary from a copy of its own executable. On Linux, nix's
-# bun loads through a C library in the nix store, and so does a binary compiled
-# from it. nix-collect-garbage can delete that library, and the binary then no
-# longer starts. On Linux this script therefore compiles with bun's own release
-# build, which loads through the system's C library. It downloads that build
-# and checks it against the hash below before running it.
-set -eu
-
-ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
-
-# bun 1.3.13, 2026-11-11, and the SHA-256 of each release archive below. The
-# x86-64 archive is the baseline build, which also runs on CPUs without AVX2.
-BUN_VERSION="1.3.13"
-BUN_LINUX_X64_BASELINE_SHA256="9d8a24292a7068090205daac0a5a223f5f69736f5287e37bf88d3b4031edc750"
-BUN_LINUX_AARCH64_SHA256="70bae41b3908b0a120e1e58c5c8af30e74afae3b8d11b0d3fdd8e787ddfb4b22"
-
-# compile_with_downloaded_bun <archive-name> <sha256>
-compile_with_downloaded_bun() {
-    tmp="$(mktemp -d)"
-    trap 'rm -rf "$tmp"' EXIT
-    curl -fsSL -o "$tmp/$1.zip" \
-        "https://github.com/oven-sh/bun/releases/download/bun-v$BUN_VERSION/$1.zip"
-    echo "$2  $tmp/$1.zip" | sha256sum -c -
-    unzip -q "$tmp/$1.zip" -d "$tmp"
-    "$tmp/$1/bun" build dist/bin/quak.js --compile --outfile bin/quak
-}
-
-main() {
-    cd "$ROOT"
-    "$ROOT/script/build"
-    case "$(uname -s)-$(uname -m)" in
-        Linux-x86_64)
-            compile_with_downloaded_bun bun-linux-x64-baseline \
-                "$BUN_LINUX_X64_BASELINE_SHA256"
-            ;;
-        Linux-aarch64)
-            compile_with_downloaded_bun bun-linux-aarch64 \
-                "$BUN_LINUX_AARCH64_SHA256"
-            ;;
-        Linux-*)
-            echo "build-bin: bun has no release build for Linux on $(uname -m)" >&2
-            exit 1
-            ;;
-        *)
-            nix-shell -p bun --run \
-                "bun build dist/bin/quak.js --compile --outfile bin/quak"
-            ;;
-    esac
-}
-
-main "$@"