feat: Implement new General Ledger frontend section with comprehensive report screens and cash/bank account management

- Added a new Ledgers sidebar section for statutory-format financial reports and cash/bank-account management.
- Introduced dedicated GL client for API interactions, handling response envelopes and error management.
- Developed report screens for Trial Balance, Balance Sheet, General Ledger, Profit & Loss, Cash Flow, Budget vs Actual, and a new Tax Report.
- Implemented CSV download functionality alongside existing PDF downloads for all report screens.
- Separated Cash and Bank accounts into distinct tables/endpoints, with updated create forms and unified list view.
- Created a new Accounts section for Cheque Management, moving Cash/Bank Accounts from the Ledgers section.
- Updated RBAC navigation to include new permissions and sub-navigation items for the added features.
- Ensured compliance with GL's updated API contract, including renaming fields and adjusting response shapes.
- Addressed various bugs and presentation issues, enhancing user experience across the new module.

Backend/ERPCore/appsettings.Development.json

@@ -6,7 +6,7 @@
     }
   },
   "ConnectionStrings": {
-    "DefaultConnection": "Host=localhost;Port=5432;Database=ERPCore;Username=postgres;Password=root"
+    "DefaultConnection": "Host=localhost;Port=5432;Database=ERPCore;Username=postgres;Password=dbuser"
   },
   "AuthHex": {
     "BaseUrl": "http://localhost:5011"