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/modules/auth/strategies/api-key.strategy.ts

@@ -12,11 +12,11 @@ export class ApiKeyStrategy extends PassportStrategy(Strategy, 'api-key') {
       jwtFromRequest: (req: Request) => {
         const apiKey = req.headers[API_KEY_HEADER] as string;
         const departmentCode = req.headers[DEPARTMENT_CODE_HEADER] as string;
-        
+
         if (!apiKey || !departmentCode) {
           return null;
         }
-        
+
         // Return a dummy token - actual validation happens in validate()
         return `${apiKey}:${departmentCode}`;
       },
@@ -26,13 +26,13 @@ export class ApiKeyStrategy extends PassportStrategy(Strategy, 'api-key') {
 
   async validate(token: string): Promise<{ departmentId: string; departmentCode: string }> {
     const [apiKey, departmentCode] = token.split(':');
-    
+
     if (!apiKey || !departmentCode) {
       throw new UnauthorizedException('API key and department code are required');
     }
 
     const result = await this.authService.validateDepartmentApiKey(apiKey, departmentCode);
-    
+
     return {
       departmentId: result.department.id,
       departmentCode: result.department.code,