fix: use code-review plugin for Claude review workflow

Remove custom prompt and restricted claude_args that prevented
Claude from using essential tools (Read, Grep, Glob, Agent).
Switch to the official code-review plugin which works correctly
on bitkit-ios. Also disable rustfmt cron to prevent automated PRs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ovitrif

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

@@ -24,27 +24,24 @@ jobs:
           fetch-depth: 1
 
       - name: Minimize old Claude comments
-        uses: actions/github-script@v7
-        with:
-          script: |
-            const { data: comments } = await github.rest.issues.listComments({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.payload.pull_request.number,
-              per_page: 100,
-            });
-            const claudeComments = comments.filter(c =>
-              c.user?.login === 'claude[bot]' || c.user?.login === 'github-actions[bot]'
-            );
-            for (const comment of claudeComments) {
-              await github.graphql(`
-                mutation MinimizeComment($id: ID!) {
-                  minimizeComment(input: { subjectId: $id, classifier: OUTDATED }) {
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          REPO="${{ github.repository }}"
+          PR_NUMBER="${{ github.event.pull_request.number }}"
+
+          # Minimize issue comments from claude[bot]
+          gh api "repos/$REPO/issues/$PR_NUMBER/comments" --jq '.[] | select(.user.login == "claude[bot]") | .node_id' | while read -r node_id; do
+            if [ -n "$node_id" ]; then
+              echo "Minimizing comment: $node_id"
+              gh api graphql -f query='
+                mutation($id: ID!) {
+                  minimizeComment(input: {subjectId: $id, classifier: OUTDATED}) {
                     minimizedComment { isMinimized }
                   }
-                }
-              `, { id: comment.node_id });
-            }
+                }' -f id="$node_id" || true
+            fi
+          done
 
       - name: Run Claude Code Review
         id: claude-review
@@ -54,5 +51,3 @@ jobs:
           plugin_marketplaces: 'https://github.com/anthropics/claude-code.git'
           plugins: 'code-review@claude-code-plugins'
           prompt: '/code-review:code-review ${{ github.repository }}/pull/${{ github.event.pull_request.number }}'
-          allowed_bots: 'claude[bot]'
-          claude_args: '--allowed-tools Bash(gh:*) WebFetch'

.github/workflows/cron-weekly-rustfmt.yml

@@ -5,9 +5,7 @@ permissions:
   pull-requests: write
 
 on:
-  schedule:
-    - cron: "0 0 * * 0" # runs weekly on Sunday at 00:00
-  workflow_dispatch: # allows manual triggering
+  workflow_dispatch: # manual only — cron schedule removed to avoid automated PRs
 jobs:
   format:
     name: Nightly rustfmt