Add comprehensive admin features and multi-system integration

- Add admin dashboard with sync controls and data browser
- Implement RMM, Auvik, and Addigy organization mappings
- Add chunked ticket sync with progress tracking
- Implement entity sync service with rate limiting
- Add analytics engine and performance optimizer
- Create data browser for all PSA entities
- Add navigation components and UI improvements
- Implement background processing and sync services
- Add comprehensive documentation and migration scripts
- Update configuration items with multi-system support
- Enhance contact management and purchase history
- Add issue type assignment and LLM analyzer
- Improve error handling and logging utilities

app/api/data/contacts/route.ts

@@ -0,0 +1,107 @@
+/**
+ * Contacts Data API Endpoint
+ * GET /api/data/contacts - Query contacts from PostgreSQL
+ */
+
+import { NextRequest, NextResponse } from 'next/server';
+import postgresClient from '@/lib/services/postgres-client';
+
+export async function GET(request: NextRequest) {
+  try {
+    const searchParams = request.nextUrl.searchParams;
+    const limit = parseInt(searchParams.get('limit') || '100');
+    const offset = parseInt(searchParams.get('offset') || '0');
+    const companyId = searchParams.get('companyId');
+    const isActive = searchParams.get('isActive');
+    const sortBy = searchParams.get('sort');
+    const sortOrder = searchParams.get('order') || 'asc';
+
+    // Build conditions and parameters
+    const conditions: string[] = [];
+    const params: any[] = [];
+
+    if (companyId) {
+      conditions.push('company_id = $' + (params.length + 1));
+      params.push(parseInt(companyId));
+    }
+    if (isActive !== null) {
+      conditions.push('is_active = $' + (params.length + 1));
+      params.push(isActive === 'true');
+    }
+
+    const whereClause = conditions.length > 0 ? 'WHERE ' + conditions.join(' AND ') : '';
+
+    // Build dynamic ORDER BY clause
+    let orderByClause = 'ORDER BY last_name ASC, first_name ASC';
+    if (sortBy) {
+      const validColumns = ['id', 'first_name', 'last_name', 'email_address', 'title', 'is_active', 'company_id'];
+      if (validColumns.includes(sortBy)) {
+        const direction = sortOrder.toLowerCase() === 'desc' ? 'DESC' : 'ASC';
+        orderByClause = `ORDER BY ${sortBy} ${direction}, last_name ASC, first_name ASC`;
+      }
+    }
+
+    // Query contacts
+    const query = `
+      SELECT 
+        id,
+        first_name,
+        last_name,
+        email_address,
+        title,
+        phone,
+        extension,
+        alternate_phone,
+        mobile_phone,
+        fax,
+        address_line,
+        address_line1,
+        city,
+        state,
+        zip_code,
+        country,
+        is_active,
+        company_id,
+        created_at,
+        updated_at,
+        synced_at,
+        is_deleted,
+        deleted_at
+      FROM contacts
+      ${whereClause}
+      ${orderByClause}
+      LIMIT $${params.length + 1} OFFSET $${params.length + 2}
+    `;
+
+    params.push(limit, offset);
+
+    const result = await postgresClient.query(query, params);
+    const contacts = result.rows;
+
+    // Get total count
+    const countQuery = `
+      SELECT COUNT(*) as total
+      FROM contacts
+      ${whereClause}
+    `;
+
+    const countResult = await postgresClient.query(countQuery, params.slice(0, -2));
+    const totalCount = parseInt(countResult.rows[0].total);
+
+    return NextResponse.json({
+      contacts,
+      pagination: {
+        limit,
+        offset,
+        total: totalCount,
+        hasMore: offset + contacts.length < totalCount,
+      },
+    });
+  } catch (error) {
+    console.error('Failed to fetch contacts:', error);
+    return NextResponse.json(
+      { error: 'Failed to fetch contacts' },
+      { status: 500 }
+    );
+  }
+}