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/SharedPhotoView.vue

@@ -175,8 +175,10 @@ export default class SharedPhotoView extends Vue {
     this.notify = createNotifyHelpers(this.$notify);
 
     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;
 
       const temp = await this.$getTemp(SHARED_PHOTO_BASE64_KEY);
       const imageB64 = temp?.blobB64 as string;