feat: Runtime configuration and Docker deployment improvements

Frontend:
- Add runtime configuration service for deployment-time API URL injection
- Create docker-entrypoint.sh to generate config.json from environment variables
- Update ApiService, ApprovalService, and DocumentViewer to use RuntimeConfigService
- Add APP_INITIALIZER to load runtime config before app starts

Backend:
- Fix init-blockchain.js to properly quote mnemonic phrases in .env file
- Improve docker-entrypoint.sh with health checks and better error handling

Docker:
- Add API_BASE_URL environment variable to frontend container
- Update docker-compose.yml with clear documentation for remote deployment
- Reorganize .env.example with clear categories (REQUIRED FOR REMOTE, PRODUCTION, AUTO-GENERATED)

Workflow fixes:
- Fix DepartmentApproval interface to match backend schema
- Fix stage transformation for 0-indexed stageOrder
- Fix workflow list to show correct stage count from definition.stages

Cleanup:
- Move development artifacts to .trash directory
- Remove root-level package.json (was only for utility scripts)
- Add .trash/ to .gitignore

backend/src/common/utils/pagination.util.ts

@@ -1,7 +1,7 @@
 import { QueryBuilder } from 'objection';
 
 export interface PaginatedResult<T> {
-  results: T[];
+  data: T[];
   total: number;
 }
 
@@ -19,7 +19,7 @@ export async function paginate<T>(
   const l = limit > 0 ? limit : 10;
 
   const { results, total } = await query.page(p, l);
-  return { results, total };
+  return { data: results, total };
 }
 
-export { QueryBuilder };
+export { QueryBuilder };