feat(ci): Add Claude Code workflow

.github/workflows/claude.yml

@@ -0,0 +1,74 @@
+name: Claude Code
+
+on:
+  issue_comment:
+    types: [created]
+  pull_request_review_comment:
+    types: [created]
+  pull_request_review:
+    types: [submitted]
+  issues:
+    types: [opened, assigned]
+  pull_request:
+    types: [labeled]
+
+jobs:
+  claude:
+    if: |
+      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
+      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
+      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
+      (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+      issues: write
+      id-token: write
+      actions: read # lets Claude read CI results on PRs
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          fetch-depth: 1
+
+      - uses: anthropics/claude-code-action@v1
+        with:
+          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+
+  review:
+    if: github.event_name == 'pull_request' && github.event.label.name == 'ready-for-review'
+    runs-on: ubuntu-latest
+    concurrency:
+      group: claude-review-${{ github.event.pull_request.number }}
+      cancel-in-progress: true
+    permissions:
+      contents: read
+      pull-requests: write
+      id-token: write
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          fetch-depth: 1
+
+      - uses: anthropics/claude-code-action@v1
+        with:
+          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+          track_progress: true
+          prompt: |
+            REPO: ${{ github.repository }}
+            PR NUMBER: ${{ github.event.pull_request.number }}
+
+            Review this PR against the repository's own review checklist.
+
+            1. Read `.claude/commands/pr-review.md` and follow it from the "What to check"
+               section onward, together with "How to write the comments" and "Output format".
+            2. Skip its "Gather the diff" section — that one assumes a local clone. Use
+               `gh pr diff` for the diff and `gh pr view` for the description and commits.
+            3. Read the full files at non-trivial change sites before judging them, and
+               check `docs/wiki/INDEX.md` for the touched module before claiming that a
+               helper, service, or entity does not already exist.
+
+            Post specific findings as inline comments citing path:line, and the summary as
+            a single top-level comment. Review only — do not modify files.
+          claude_args: |
+            --allowedTools "mcp__github_inline_comment__create_inline_comment,Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"