Fix Claude Code Review workflow comment tooling (#928)

This ports the Claude Code review workflow fix from
[shakacode/hichee-data#367](shakacode/hichee-data#367):

- update prompt instructions so Claude posts feedback via GitHub
comments
- allow required tools via `claude_args --allowedTools`
- remove sticky-comment mode

This makes Claude review output appear as top-level and inline PR
comments.

Author: justin808

.github/workflows/claude-code-review.yml

@@ -24,6 +24,21 @@ jobs:
         uses: anthropics/claude-code-action@v1
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
-          use_sticky_comment: true
           prompt: |
-            Review this PR for correctness, security issues, and potential improvements.
+            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
+
+            Note: The PR branch is already checked out in the current working directory.
+
+            Use `gh pr comment` for top-level feedback.
+            Use `mcp__github_inline_comment__create_inline_comment` to highlight specific code issues.
+            Only post GitHub comments - don't submit review text as messages.
+
+          claude_args: |
+            --allowedTools "mcp__github_inline_comment__create_inline_comment,Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"