fix: Add GitHub Actions-level filtering for Claude workflow triggers

[Enteee]

Summary

• Add if: conditions to Claude workflows to filter at GitHub Actions level
• Prevent wasteful job runs when trigger phrases are not present in comments
• Use settings: parameter instead of claude_args for settings file
• Save runner minutes by skipping VM allocation for non-matching events

Problem

Previously, the workflows relied solely on the trigger_phrase parameter inside the claude-code-action, which meant:

• GitHub Actions would start a VM for every comment/review
• The action would check the trigger phrase after resources were allocated
• Runner minutes were wasted even when the trigger phrase wasn't present

Solution

Added GitHub Actions-level if: conditions that check trigger phrases before starting jobs:

claude.yml

• Only runs on issues (opened/assigned) - no filtering needed
• For comments/reviews: only runs if @claude is present
• Use settings: parameter for settings file (recommended approach)

claude-code-review.yml

• Runs on all PR opens (auto-review)
• For comments: only runs if /review is present

Impact

✅ Prevents unnecessary VM starts
✅ Reduces runner minute consumption
✅ Jobs skip entirely when trigger phrases are absent
✅ Same functionality for users (trigger phrases still work the same)
✅ Follows recommended configuration approach

Test plan

• Open a PR and verify auto-review still runs
• Comment "LGTM" without trigger phrase → workflow should skip
• Comment "/review" on PR → workflow should run
• Comment "@claude do something" → workflow should run

🤖 Generated with Claude Code