add github labels auto-sync

.github/labels.yaml

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+- name: "B-brawl-failed"
+  color: "B60205"
+- name: "B-brawl-merged"
+  color: "5319E7"
+- name: "B-brawl-merging"
+  color: "006B75"
+- name: "B-brawl-queued"
+  color: "C2E0C6"
+- name: "B-brawl-try"
+  color: "FBCA04"
+- name: "B-brawl-try-failed"
+  color: "B60205"
+- name: "bug"
+  color: "d73a4a"
+- name: "documentation"
+  color: "0075ca"
+- name: "duplicate"
+  color: "cfd3d7"
+- name: "enhancement"
+  color: "a2eeef"
+- name: "good first issue"
+  color: "7057ff"
+- name: "help wanted"
+  color: "008672"
+- name: "invalid"
+  color: "e4e669"
+- name: "question"
+  color: "d876e3"
+- name: "wontfix"
+  color: "ffffff"

.github/workflows/sync-labels.yaml

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+name: Sync Labels
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/labels.yaml"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  synclabels:
+    name: Sync Labels
+    runs-on: ubuntu-24.04
+
+    permissions: write-all
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Sync labels
+        uses: crazy-max/ghaction-github-labeler@v5
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          dry-run: ${{ github.event_name == 'pull_request' }}
+          yaml-file: .github/labels.yaml