Cc

Run a full code check cycle and fix all issues until clean.

## Steps

1. Run all three checks in order:
   - `ruff check . --fix` — linting (auto-fix what's safe)
   - `ruff format .` — formatting
   - `mypy --strict` — type checking (no auto-fix, manual only)

2. Address any remaining issues:
   - Fix ruff violations that weren't auto-fixed
   - Fix mypy errors by correcting type annotations, signatures, or logic as needed
   - Do not suppress errors with `# type: ignore` or `noqa` unless the error is a known false positive in a third-party library

3. Re-run all checks. Repeat until fully clean.

## Escalate to the human instead of fixing when:

- A type error requires changing a function signature called in multiple places
- A type error points to an architectural mismatch (e.g. wrong-level responsibility, incompatible abstractions)
- A linting violation conflicts with an established pattern elsewhere in the codebase
- A fix would require changes outside the scope of the recent edit
- You've cycled more than 3 times without getting clean — something systemic is wrong

## Report format when escalating

State clearly:
- Which check is failing and the exact error
- Why you cannot fix it locally
- What the likely root cause is
- What decision or change is needed from the human