Fix all req.params and req.query type errors

- Add getParamString helper function for req.params
- Replace all req.params destructuring with getParamString
- Fix remaining req.query.* direct usage errors
- All TypeScript compilation errors now resolved

backend/src/routes/applications.ts

@@ -6,7 +6,7 @@ import { logger } from '../services/logger.js';
 import { calculateRequiredEffortApplicationManagementWithBreakdown } from '../services/effortCalculation.js';
 import { findBIAMatch, loadBIAData, clearBIACache, calculateSimilarity } from '../services/biaMatchingService.js';
 import { calculateApplicationCompleteness } from '../services/dataCompletenessConfig.js';
-import { getQueryString } from '../utils/queryHelpers.js';
+import { getQueryString, getParamString } from '../utils/queryHelpers.js';
 import type { SearchFilters, ReferenceValue, ClassificationResult, ApplicationDetails, ApplicationStatus } from '../types/index.js';
 import type { Server, Flows, Certificate, Domain, AzureSubscription, CMDBObjectTypeName } from '../generated/jira-types.js';
 
@@ -323,7 +323,7 @@ router.get('/bia-comparison', async (req: Request, res: Response) => {
 //   - mode=edit: Force refresh from Jira for editing (includes _jiraUpdatedAt for conflict detection)
 router.get('/:id', async (req: Request, res: Response) => {
   try {
-    const { id } = req.params;
+    const id = getParamString(req, 'id');
     const mode = getQueryString(req, 'mode');
     
     // Don't treat special routes as application IDs
@@ -359,7 +359,7 @@ router.get('/:id', async (req: Request, res: Response) => {
 // Update application with conflict detection
 router.put('/:id', async (req: Request, res: Response) => {
   try {
-    const { id } = req.params;
+    const id = getParamString(req, 'id');
     const { updates, _jiraUpdatedAt } = req.body as {
       updates?: {
         applicationFunctions?: ReferenceValue[];
@@ -471,7 +471,7 @@ router.put('/:id', async (req: Request, res: Response) => {
 // Force update (ignore conflicts)
 router.put('/:id/force', async (req: Request, res: Response) => {
   try {
-    const { id } = req.params;
+    const id = getParamString(req, 'id');
     const updates = req.body;
 
     const application = await dataService.getApplicationById(id);
@@ -552,7 +552,7 @@ router.post('/calculate-effort', async (req: Request, res: Response) => {
 // Get application classification history
 router.get('/:id/history', async (req: Request, res: Response) => {
   try {
-    const { id } = req.params;
+    const id = getParamString(req, 'id');
     const history = await databaseService.getClassificationsByApplicationId(id);
     res.json(history);
   } catch (error) {
@@ -564,7 +564,8 @@ router.get('/:id/history', async (req: Request, res: Response) => {
 // Get related objects for an application (from cache)
 router.get('/:id/related/:objectType', async (req: Request, res: Response) => {
   try {
-    const { id, objectType } = req.params;
+    const id = getParamString(req, 'id');
+    const objectType = getParamString(req, 'objectType');
     
     // Map object type string to CMDBObjectTypeName
     const typeMap: Record<string, CMDBObjectTypeName> = {