feat: Add Claude Code Action automated PR review workflow (#81)

* feat: add cca review workflow

* fix: skip job for fork PRs

* chore: rename the workflow

Author: mkczarkowski

.github/workflows/cca-review.yml

@@ -0,0 +1,42 @@
+name: Claude Code Action Review
+on:
+  pull_request:
+    types: [opened, synchronize, ready_for_review, reopened]
+
+jobs:
+  cca-review:
+    runs-on: ubuntu-latest
+    # Skip for forked PRs - external contributors don't have access to repository secrets
+    # This prevents the job from failing when secrets.ANTHROPIC_API_KEY is unavailable
+    if: github.event.pull_request.head.repo.full_name == github.repository
+    permissions:
+      contents: read
+      pull-requests: write
+      id-token: write
+    environment:
+      name: integration
+    steps:
+      - uses: actions/checkout@v5
+        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 }}
+
+            Please review this pull request with a focus on:
+            - Code quality and best practices
+            - Potential bugs or issues
+            - Security implications
+            - Performance considerations
+
+            Please take @.ai/project-prd, @.ai/tech-stack and other applicable context documents into account.
+
+            Provide detailed feedback using inline comments for specific issues.
+
+          claude_args: |
+            --allowedTools "mcp__github_inline_comment__create_inline_comment,Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"