Fix TypeScript compilation errors in backend

- Fix query parameter type issues (string | string[] to string) in controllers
- Add public getDatabaseAdapter() method to SchemaRepository for db access
- Fix SchemaSyncService export and import issues
- Fix referenceObject vs referenceObjectType property name
- Add missing jiraAssetsClient import in normalizedCacheStore
- Fix duplicate properties in object literals
- Add type annotations for implicit any types
- Fix type predicate issues with generics
- Fix method calls (getEnabledObjectTypes, syncAllSchemas)
- Fix type mismatches (ObjectTypeRecord vs expected types)
- Fix Buffer type issue in biaMatchingService
- Export SchemaSyncService class for ServiceFactory

backend/src/services/database/migrate-to-normalized-schema.ts

@@ -11,6 +11,7 @@
 
 import { logger } from '../logger.js';
 import { normalizedCacheStore } from '../normalizedCacheStore.js';
+import type { DatabaseAdapter } from './interface.js';
 
 export async function migrateToNormalizedSchema(): Promise<void> {
   const db = (normalizedCacheStore as any).db;
@@ -23,7 +24,7 @@ export async function migrateToNormalizedSchema(): Promise<void> {
   logger.info('Migration: Starting migration to normalized schema structure...');
 
   try {
-    await db.transaction(async (txDb) => {
+    await db.transaction(async (txDb: DatabaseAdapter) => {
       // Step 1: Check if configured_object_types table exists
       let configuredTableExists = false;
       try {
@@ -172,14 +173,14 @@ export async function migrateToNormalizedSchema(): Promise<void> {
             FROM information_schema.columns
             WHERE table_schema = 'public' AND table_name = 'object_types'
           `);
-          hasSchemaId = columns.some(c => c.column_name === 'schema_id');
-          hasEnabled = columns.some(c => c.column_name === 'enabled');
+          hasSchemaId = columns.some((c: { column_name: string }) => c.column_name === 'schema_id');
+          hasEnabled = columns.some((c: { column_name: string }) => c.column_name === 'enabled');
         } else {
           const tableInfo = await txDb.query<{ name: string }>(`
             PRAGMA table_info(object_types)
           `);
-          hasSchemaId = tableInfo.some(c => c.name === 'schema_id');
-          hasEnabled = tableInfo.some(c => c.name === 'enabled');
+          hasSchemaId = tableInfo.some((c: { name: string }) => c.name === 'schema_id');
+          hasEnabled = tableInfo.some((c: { name: string }) => c.name === 'enabled');
         }
       } catch (error) {
         logger.warn('Migration: Could not check object_types columns', error);