v7.12.1

Fixed

• Stop the auto-updated in-process server crashing under an older custom component
  (#1792)

Refactoring

• c901: Fix 8 files below C901 threshold, remove from grandfather list
  (#1793)
• c901: Tools_config_dashboards.py below C901 threshold, enable C90 lint
  (#1790)

---

Internal Changes

Fixed

• Isolate 3 beta-gate tests from real ~/.ha-mcp config
  (#1791)
• Split mypy-webhook-proxy lefthook job to avoid module collision
  (#1789)

Chores

• addon: Publish dev addon version 7.12.0.dev1840 [skip ci]
  (d315210)
• addon: Publish dev addon version 7.12.0.dev1837 [skip ci]
  (2fd1621)
• addon: Publish dev addon version 7.12.0.dev1835 [skip ci]
  (55ce284)
• addon: Publish version 7.12.0 [skip ci]
  (adcbd61)

Testing

• Add an update-path e2e lane covering released-component x new-server installs
  (#1796)