auto-perf-optimize

# VS Code Performance Workflow Drive a repeatable VS Code scenario, collect memory/performance artifacts, verify that the scenario actually happened, then hand the resulting heap snapshots to the generic heap-snapshot-analysis skill when object-level investigation is needed. ## When to Use - User describes a VS Code workflow and asks whether it leaks or grows memory - User asks the agent to launch VS Code, drive a scenario, and capture heap snapshots - User asks to run the Chat memory smoke runner bundled with this skill - User wants screenshots, `summary.json`, renderer heap samples, and targeted `.heapsnapshot` files for one scenario - User wants a new automation runner for a non-Chat VS Code scenario Do not use this skill when snapshots already exist and the user only wants heap object/retainer analysis. Use heap-snapshot-analysis directly. ## The Story 1. **Define the scenario.** Write down one warmup action, one repeatable iteration, and one quiescent point where it is fair to force GC and sample memory. 2. **Develop the automation.** Start with a tiny no-snapshot run. If it fails or the UI state is uncertain, keep the Code window open, connect `@playwright/cli` to the same CDP port, take workspace-local screenshots, inspect snapshots, and update the runner's selectors/waits. 3. **Run a fast smoke.** Disable heap snapshots first. Prove the scenario completes and the artifact summary says what you think it says. 4. **Capture targeted snapshots.** Snapshot a warmed-u...