Fix lint debt and make CI gates honest

- ruff: fix all 328 errors (autofix + manual); move config to [tool.ruff.lint]
- mypy: fix all errors (annotations, nullable-column guards, stale kwargs
  in weekly report caller)
- black: reformat src/tests so black --check passes
- CI: remove `|| true` from ruff/black/mypy/pytest steps in both
  .gitea and .github workflows; install project deps and add mypy
  step in gitea python-ci so gates actually run
- docs: move 14 root status/guide markdown files into docs/, update links

scripts/monitor_market.py

@@ -74,7 +74,7 @@ def main(tickers, interval, once, min_severity, save_report, lookback):
 
                 if filtered:
                     # Generate report
-                    report = alert_mgr.generate_summary_report(filtered, format="text")
+                    report = alert_mgr.generate_summary_report(filtered, output_format="text")
                     print("\n" + report)
 
                     # Save report if requested