chore: rename module from torrentclaw-cli to unarr

- Rename Go module path github.com/torrentclaw/torrentclaw-cli → github.com/torrentclaw/unarr
- Update all imports, ldflags, scripts, docs, and Docker config
- Add GitHub Actions release workflow (goreleaser on tag push)

.github/workflows/release.yml

@@ -10,30 +10,20 @@ permissions:
 
 jobs:
   release:
-    name: GoReleaser
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
-      - name: Checkout go-client (local replace dependency)
-        run: git clone --depth 1 https://github.com/torrentclaw/go-client "$GITHUB_WORKSPACE/../go-client"
-
-      - name: Set up Go
-        uses: actions/setup-go@v6
+      - uses: actions/setup-go@v5
         with:
-          go-version: "1.25"
+          go-version-file: go.mod
 
-      - name: Install UPX
-        uses: crazy-max/ghaction-upx@v4
+      - uses: goreleaser/goreleaser-action@v6
         with:
-          install-only: true
-
-      - name: Run GoReleaser
-        uses: goreleaser/goreleaser-action@v7
-        with:
-          version: latest
+          version: "~> v2"
           args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SENTRY_DSN: ${{ secrets.SENTRY_DSN }}