Relicense to Apache-2.0, add NOTICE, support chore label

.github/workflows/pr-label-check.yml

@@ -15,15 +15,16 @@ jobs:
           HAS_MAJOR=$(echo "$LABELS" | grep -c '"major"' || true)
           HAS_MINOR=$(echo "$LABELS" | grep -c '"minor"' || true)
           HAS_PATCH=$(echo "$LABELS" | grep -c '"patch"' || true)
+          HAS_CHORE=$(echo "$LABELS" | grep -c '"chore"' || true)
 
-          COUNT=$((HAS_MAJOR + HAS_MINOR + HAS_PATCH))
+          COUNT=$((HAS_MAJOR + HAS_MINOR + HAS_PATCH + HAS_CHORE))
 
           if [ "$COUNT" -eq 0 ]; then
-            echo "::error::PR must have one of: major, minor, patch label"
+            echo "::error::PR must have one of: major, minor, patch, chore label"
             exit 1
           elif [ "$COUNT" -gt 1 ]; then
-            echo "::error::PR must have exactly one version label (major, minor, or patch). Found multiple."
+            echo "::error::PR must have exactly one label (major, minor, patch, or chore). Found multiple."
             exit 1
           fi
 
-          echo "✓ Version label found"
+          echo "✓ Label found"

.github/workflows/release.yml

@@ -6,6 +6,7 @@
 #        - "major" label  → 1.2.3 → 2.0.0
 #        - "minor" label  → 1.2.3 → 1.3.0
 #        - "patch" label  → 1.2.3 → 1.2.4  (also the default fallback)
+#        - "chore" label  → no release (CI housekeeping, docs, relicense, etc.)
 #   3. Decodes your keystore from a GitHub secret
 #   4. Builds a signed release APK with the new version
 #   5. Creates a GitHub Release with the APK attached
@@ -27,23 +28,24 @@ permissions:
   contents: write
 
 jobs:
-  build:
+  detect:
     runs-on: ubuntu-latest
-
+    outputs:
+      type: ${{ steps.bump.outputs.type }}
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
       - name: Detect bump type from merged PR labels
         id: bump
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           # Find the PR associated with this merge commit
           COMMIT_SHA="${{ github.sha }}"
-          LABELS=$(gh pr list --state merged --search "$COMMIT_SHA" --json labels -q '.[0].labels[].name' 2>/dev/null || echo "")
+          LABELS=$(gh pr list --state merged --search "$COMMIT_SHA" --repo "${{ github.repository }}" --json labels -q '.[0].labels[].name' 2>/dev/null || echo "")
 
-          if echo "$LABELS" | grep -qi "major"; then
+          if echo "$LABELS" | grep -qi "chore"; then
+            echo "type=chore" >> "$GITHUB_OUTPUT"
+            echo "Chore PR — skipping release"
+          elif echo "$LABELS" | grep -qi "major"; then
             echo "type=major" >> "$GITHUB_OUTPUT"
           elif echo "$LABELS" | grep -qi "minor"; then
             echo "type=minor" >> "$GITHUB_OUTPUT"
@@ -52,6 +54,15 @@ jobs:
           fi
           echo "Bump type: $(grep type "$GITHUB_OUTPUT" | cut -d= -f2)"
 
+  build:
+    needs: detect
+    if: needs.detect.outputs.type != 'chore'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
       - name: Determine next version
         id: version
         env:
@@ -70,7 +81,7 @@ jobs:
 
           # Parse semver
           IFS='.' read -r MAJOR MINOR PATCH <<< "$LATEST"
-          BUMP="${{ steps.bump.outputs.type }}"
+          BUMP="${{ needs.detect.outputs.type }}"
 
           if [ "$BUMP" = "major" ]; then
             MAJOR=$((MAJOR + 1))

CLAUDE.md

@@ -2,18 +2,20 @@
 
 ## PR Creation Rules
 
-When creating a PR to `master`, you MUST add exactly one version label based on the changes:
+When creating a PR to `master`, you MUST add exactly one label based on the changes:
 
 - **`major`** — Breaking changes, major new features, architecture overhaul
 - **`minor`** — New features, significant enhancements, new UI screens
 - **`patch`** — Bug fixes, small tweaks, translation updates, dependency bumps
+- **`chore`** — CI/workflow changes, docs-only edits, relicensing, repo housekeeping (no release is cut)
 
 Use `gh pr create --label <label>` to include the label when creating the PR.
 
-Analyze the diff to determine the appropriate version bump:
+Analyze the diff to determine the appropriate label:
 - If the change adds new user-facing functionality → `minor`
 - If the change fixes a bug or makes small adjustments → `patch`
 - If the change breaks backward compatibility or is a major overhaul → `major`
+- If the change does not affect the shipped APK (CI, README, LICENSE, `.github/`, `docs/`) → `chore`
 - When in doubt, default to `patch`
 
 ## Development Approach

CONTRIBUTING.md

@@ -56,4 +56,4 @@ Existing translations: en, ko, de, es, fr, ja, nl, no, zh-CN
 
 ## License
 
-By contributing, you agree that your contributions will be licensed under the GPL-3.0 License.
+By contributing, you agree that your contributions will be licensed under the Apache License 2.0.