Merge pull request #67 from loss-and-quick/chore/pr-auto-label

ci: auto-label PRs by changed paths

Author: loss-and-quick

.github/labeler.yml

@@ -0,0 +1,46 @@
+# Path-based PR labels (actions/labeler v5). Maps changed files to the same
+# taxonomy as the PR template's "Affected layer" + the platform:* labels the bug
+# form sets on issues. A PR can carry several (e.g. a desktop change touching both
+# the linux dir and the frontend).
+
+frontend:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "frontend/**"
+          - "package.json"
+          - "bun.lock"
+          - "biome.json"
+
+backend:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "crates/**"
+          - "src-tauri/**"
+          - "Cargo.toml"
+          - "Cargo.lock"
+
+"platform:linux":
+  - changed-files:
+      - any-glob-to-any-file:
+          - "src-tauri/src/desktop/linux/**"
+
+"platform:windows":
+  - changed-files:
+      - any-glob-to-any-file:
+          - "src-tauri/src/desktop/windows/**"
+
+"platform:android":
+  - changed-files:
+      - any-glob-to-any-file:
+          - "module/**"
+          - "crates/kasumi-daemon/**"
+
+ci:
+  - changed-files:
+      - any-glob-to-any-file:
+          - ".github/**"
+
+documentation:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "**/*.md"

.github/workflows/label-pr.yml

@@ -0,0 +1,19 @@
+name: Label PR
+
+# Auto-label PRs by the files they touch (config: .github/labeler.yml), mirroring
+# the platform labelling the bug form does for issues. `pull_request_target` so it
+# has write scope on PRs from forks; labeler only reads the diff's file list and the
+# config from the base branch — it never checks out or runs PR code, so it's safe.
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@8558fd74291d67161a8a78ce36a881fa63b766a9 # v5