Fix TypeScript any types and remove deprecated Dexie code

- Replace Record<string, any> with Record<string, string> for query params
- Fix error handling from catch(err: any) to catch(err: unknown)
- Add EntityData interface for proper entity typing
- Update EntitySelectionEvent interface with union types
- Remove USE_DEXIE_DB conditionals and unused import
- Clean up database service calls removing Dexie fallbacks

Resolves 9 TypeScript any type warnings, improves type safety across
entity selection components, and removes deprecated database migration code.

src/services/indexedDBMigrationService.ts

@@ -11,10 +11,8 @@
  * for safe migration of data between the two storage systems.
  *
  * Usage:
- * 1. Enable Dexie temporarily by setting USE_DEXIE_DB = true in constants/app.ts
- * 2. Use compareDatabases() to see differences between databases
- * 3. Use migrateContacts() and/or migrateSettings() to transfer data
- * 4. Disable Dexie again after migration is complete
+ * 1. Use compareDatabases() to see differences between databases
+ * 2. Use migrateContacts() and/or migrateSettings() to transfer data
  *
  * @author Matthew Raymer
  * @version 1.0.0