chore: reserialize db on equal version, update bindings and docs

- Run de/ser roundtrip in pre_init even when db version matches, ensuring
  all #[serde(default)] fields are populated before any typed access
- Add patchdb.md documentation for TypedDbWatch patterns
- Update TS bindings for CheckPortParams, CheckPortRes, ifconfigUrl
- Update CLAUDE.md docs with patchdb and component-level references

web/projects/ui/src/app/services/api/mock-patch.ts

@@ -205,6 +205,7 @@ export const mockPatchData: DataModel = {
     caFingerprint: '63:2B:11:99:44:40:17:DF:37:FC:C3:DF:0F:3D:15',
     ntpSynced: false,
     smtp: null,
+    ifconfigUrl: 'https://ifconfig.co',
     platform: 'x86_64-nonfree',
     zram: true,
     governor: 'performance',