feat: real release notes, restart button, reliable .run installer (0.0.10)

- feat(ci): set each Gitea release body from the matching CHANGELOG section
  (was hardcoded "Automated release for…")
- feat(updater): show "What's new" — release notes dialog before applying (GUI)
  and in `rigdoctor update` (CLI); fetch_latest/update_state now return notes
- feat(gui): "Restart now" button relaunches the app after an update is applied
- fix(packaging): build the self-extracting .run with a pure-Python extractor
  (packaging/make_run.py) instead of makeself, so it attaches to every release
  (it was silently skipped before)
- chore: adopt Conventional Commits + git-cliff (cliff.toml, packaging/
  changelog.sh) for changelog generation going forward (D20)
- chore(gui): drop internal module refs (M4, M5, …) from Setup descriptions

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packaging/make-run.sh

@@ -1,33 +1,3 @@
 #!/usr/bin/env sh
-# Build a self-extracting .run installer: bundles the wheel + install.sh so a user
-# can download one file, run it, and get a no-root user-local install.
-#
-# Requires `makeself` (apt install makeself). Run from the repo root.
-set -eu
-
-ROOT=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
-cd "$ROOT"
-
-command -v makeself >/dev/null 2>&1 || {
-    echo "makeself not found. Install it: sudo apt install makeself"
-    exit 1
-}
-
-VERSION=$(python3 -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")
-mkdir -p dist
-
-# Build the wheel if it isn't already in dist/.
-if ! ls dist/rigdoctor-"$VERSION"-py3-none-any.whl >/dev/null 2>&1; then
-    python3 -m build --wheel
-fi
-
-STAGE=$(mktemp -d)
-cp dist/rigdoctor-"$VERSION"-py3-none-any.whl "$STAGE"/
-cp install.sh "$STAGE"/install.sh
-chmod +x "$STAGE/install.sh"
-
-OUT="dist/rigdoctor-$VERSION-installer.run"
-makeself --notemp-suffix "$STAGE" "$OUT" "RigDoctor $VERSION installer" ./install.sh
-rm -rf "$STAGE"
-echo "Built $OUT"
-echo "Run it with:  chmod +x $OUT && ./$OUT"
+# Build the self-extracting .run installer (delegates to make_run.py — no makeself).
+exec python3 "$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)/make_run.py" "$@"