🧹 [Code Health] Remove unused _ps import and cleanup code in live_chat_app.py

[google-labs-jules]

🎯 What: The code health issue addressed
The patch removes an unused local import (import psutil as _ps) and an unused variable (_MAX_RSS) in the _run_with_memory_guard function of live_chat_app.py. It also unwraps the redundant try/except ImportError block that only existed to catch the psutil import failure.

💡 Why: How this improves maintainability
The psutil import was entirely unused within the function logic, making it dead code. Unwrapping the try/except block simplifies the function execution and reduces unnecessary nesting. The actual active memory check logic (len(result.stdout) > 4_000_000) remains intact and will safely execute.

✅ Verification: How you confirmed the change is safe
Ran tests using python -m pytest test_vision.py, which passed successfully. Formatting and lint checks (via ruff) on the specific modified file passed without breaking the codebase. Tested with no regressions or side effects.

✨ Result: The improvement achieved
A cleaner _run_with_memory_guard function with less dead code, no unused imports, and better readability.

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PR created automatically by Jules for task 17336521804230552597 started by @dqikfox

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Project	Deployment	Actions	Updated (UTC)
vision	Ready	Preview, Comment	Jun 23, 2026 8:49am