Add Claude Code workflow for AI-assisted PR reviews

Add a workflow that calls the reusable Claude Code workflow in
eng-dev-ecosystem. Provides two modes:
- Automatic PR review on open/sync (read-only)
- Interactive @claude mentions for code changes

Co-authored-by: Isaac

Author: shreyas-goenka

.github/workflows/claude-code.yml

@@ -0,0 +1,46 @@
+name: Claude Code
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+  issue_comment:
+    types: [created]
+
+  pull_request_review_comment:
+    types: [created]
+
+jobs:
+  # Automatic PR review when a PR is opened or updated.
+  review:
+    if: github.event_name == 'pull_request'
+    uses: databricks-eng/eng-dev-ecosystem/.github/workflows/claude-code.yml@main
+    secrets:
+      DATABRICKS_SP_CLIENT_ID: ${{ secrets.DATABRICKS_SP_CLIENT_ID }}
+      DATABRICKS_SP_CLIENT_SECRET: ${{ secrets.DATABRICKS_SP_CLIENT_SECRET }}
+    with:
+      prompt: "Review this PR. Focus on correctness, error handling, and adherence to the project's Go conventions documented in CLAUDE.md."
+      allowed_tools: "Read,Glob,Grep"
+      max_turns: "5"
+
+  # Interactive @claude mentions — Claude can make changes and push commits.
+  assist:
+    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'))
+    uses: databricks-eng/eng-dev-ecosystem/.github/workflows/claude-code.yml@main
+    secrets:
+      DATABRICKS_SP_CLIENT_ID: ${{ secrets.DATABRICKS_SP_CLIENT_ID }}
+      DATABRICKS_SP_CLIENT_SECRET: ${{ secrets.DATABRICKS_SP_CLIENT_SECRET }}
+    with:
+      allowed_tools: |
+        Bash(make lint)
+        Bash(make test)
+        Bash(make fmt)
+        Bash(go build ./...)
+        Read
+        Edit
+        Write
+        Glob
+        Grep
+      max_turns: "10"