chore: Add labeler

.gitea/labeler.yml

@@ -0,0 +1,9 @@
+frontend:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "frontend/**"
+
+backend:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "backend/**"

.gitea/workflows/labeler.yml

@@ -0,0 +1,18 @@
+name: "Pull Request Labeler"
+on:
+  pull_request:
+  pull_request_target:
+
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - uses: actions/labeler@v5
+        with:
+          configuration-path: ".gitea/labeler.yml"