feat(db)!: complete ActiveDid migration to active_identity table

Migrate all 34 Vue components from settings.activeDid to $getActiveIdentity()
pattern. This completes the database architecture improvement that separates
identity selection from user preferences and prevents data corruption.

- Replace this.activeDid = settings.activeDid with $getActiveIdentity() calls
- Add ESLint ignore comments for TypeScript type assertions
- Update migration plan documentation to reflect completion
- All components tested with passing results

BREAKING CHANGE: Components now use active_identity table as single source
of truth for activeDid values instead of settings table

src/views/ContactQRScanShowView.vue

@@ -286,7 +286,12 @@ export default class ContactQRScanShow extends Vue {
 
     try {
       const settings = await this.$accountSettings();
-      this.activeDid = settings.activeDid || "";
+
+      // Get activeDid from active_identity table (single source of truth)
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      const activeIdentity = await (this as any).$getActiveIdentity();
+      this.activeDid = activeIdentity.activeDid || "";
+
       this.apiServer = settings.apiServer || "";
       this.givenName = settings.firstName || "";
       this.hideRegisterPromptOnNewContact =