Implement Phase 2 features: roles, assessment groups, budget import, Kanban

- Add hierarchical roles: SuperUser Admin (is_superadmin flag), Tenant Admin,
  Tenant User with separate /admin route and admin panel
- Add Assessment Groups module for property type-based assessment rates
  (SFHs, Condos, Estate Lots with different regular/special rates)
- Enhance Chart of Accounts: initial balance on create (with journal entry),
  archive/restore accounts, edit all fields including account number & fund type
- Add Budget CSV import with downloadable template and account mapping
- Add Capital Projects Kanban board with drag-and-drop between year columns,
  table/kanban view toggle, and PDF export via browser print
- Update seed data with assessment groups, second test user, superadmin flag
- Create repeatable reseed.sh script for clean database population
- Fix AgingReportPage Mantine v7 Table prop compatibility

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/modules/auth/auth.module.ts

@@ -3,6 +3,7 @@ import { JwtModule } from '@nestjs/jwt';
 import { PassportModule } from '@nestjs/passport';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { AuthController } from './auth.controller';
+import { AdminController } from './admin.controller';
 import { AuthService } from './auth.service';
 import { JwtStrategy } from './strategies/jwt.strategy';
 import { LocalStrategy } from './strategies/local.strategy';
@@ -21,7 +22,7 @@ import { UsersModule } from '../users/users.module';
       }),
     }),
   ],
-  controllers: [AuthController],
+  controllers: [AuthController, AdminController],
   providers: [AuthService, JwtStrategy, LocalStrategy],
   exports: [AuthService],
 })