Fix YAML syntax error on line 209 in fix-remote-pr.yml

Changed Gemini CLI comment invocation to use --body-file instead of
inline multi-line string, which was causing YAML parsing errors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: amrit110

.github/workflows/fix-remote-pr.yml

@@ -200,13 +200,14 @@ jobs:
         run: |
           REPO="${{ github.event.inputs.target_repo }}"
           PR_NUMBER="${{ github.event.inputs.pr_number }}"
-          PROMPT=$(cat /tmp/gemini-prompt.txt)
 
           # Post comment to trigger gemini-cli
           # Note: gemini-cli works via PR comments in the target repo
-          gh pr comment $PR_NUMBER --repo "$REPO" --body "@gemini-cli
+          echo "@gemini-cli" > /tmp/gemini-comment.txt
+          echo "" >> /tmp/gemini-comment.txt
+          cat /tmp/gemini-prompt.txt >> /tmp/gemini-comment.txt
 
-$PROMPT"
+          gh pr comment $PR_NUMBER --repo "$REPO" --body-file /tmp/gemini-comment.txt
 
           echo "✅ Gemini CLI invoked via PR comment"
         env: