Fix TypeScript compilation errors

- Add searchReference to ApplicationListItem type
- Fix result variable in toApplicationDetails function
- Add query helper functions for req.query parameter handling
- Fix req.query.* type errors in routes (applications, cache, classifications, objects)
- Fix CompletenessCategoryConfig missing id property
- Fix number | null type errors in dataService
- Add utils/queryHelpers.ts for reusable query parameter helpers

backend/src/routes/applications.ts

@@ -6,6 +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 type { SearchFilters, ReferenceValue, ClassificationResult, ApplicationDetails, ApplicationStatus } from '../types/index.js';
 import type { Server, Flows, Certificate, Domain, AzureSubscription, CMDBObjectTypeName } from '../generated/jira-types.js';
 
@@ -31,7 +32,7 @@ router.post('/search', async (req: Request, res: Response) => {
 // Get team dashboard data
 router.get('/team-dashboard', async (req: Request, res: Response) => {
   try {
-    const excludedStatusesParam = req.query.excludedStatuses as string | undefined;
+    const excludedStatusesParam = getQueryString(req, 'excludedStatuses');
     let excludedStatuses: ApplicationStatus[] = [];
     
     if (excludedStatusesParam && excludedStatusesParam.trim().length > 0) {
@@ -56,7 +57,7 @@ router.get('/team-dashboard', async (req: Request, res: Response) => {
 // Get team portfolio health metrics
 router.get('/team-portfolio-health', async (req: Request, res: Response) => {
   try {
-    const excludedStatusesParam = req.query.excludedStatuses as string | undefined;
+    const excludedStatusesParam = getQueryString(req, 'excludedStatuses');
     let excludedStatuses: ApplicationStatus[] = [];
     
     if (excludedStatusesParam && excludedStatusesParam.trim().length > 0) {
@@ -95,7 +96,7 @@ router.get('/business-importance-comparison', async (req: Request, res: Response
 // Test BIA data loading (for debugging)
 router.get('/bia-test', async (req: Request, res: Response) => {
   try {
-    if (req.query.clear === 'true') {
+    if (getQueryString(req, 'clear') === 'true') {
       clearBIACache();
     }
     const biaData = loadBIAData();
@@ -133,7 +134,7 @@ router.get('/bia-debug', async (req: Request, res: Response) => {
     
     // Test each sample app
     for (const app of [...sampleApps, ...testApps]) {
-      const matchResult = findBIAMatch(app.name, app.searchReference);
+      const matchResult = findBIAMatch(app.name, app.searchReference ?? null);
       
       // Find all potential matches in Excel data for detailed analysis
       const normalizedAppName = app.name.toLowerCase().trim();
@@ -246,7 +247,7 @@ router.get('/bia-comparison', async (req: Request, res: Response) => {
 
     for (const app of applications) {
       // Find BIA match in Excel
-      const matchResult = findBIAMatch(app.name, app.searchReference);
+      const matchResult = findBIAMatch(app.name, app.searchReference ?? null);
       
       // Log first few matches for debugging
       if (comparisonItems.length < 5) {
@@ -323,7 +324,7 @@ router.get('/bia-comparison', async (req: Request, res: Response) => {
 router.get('/:id', async (req: Request, res: Response) => {
   try {
     const { id } = req.params;
-    const mode = req.query.mode as string | undefined;
+    const mode = getQueryString(req, 'mode');
     
     // Don't treat special routes as application IDs
     if (id === 'team-dashboard' || id === 'team-portfolio-health' || id === 'business-importance-comparison' || id === 'bia-comparison' || id === 'bia-test' || id === 'calculate-effort' || id === 'search') {
@@ -617,8 +618,9 @@ router.get('/:id/related/:objectType', async (req: Request, res: Response) => {
     }
 
     // Get requested attributes from query string
-    const requestedAttrs = req.query.attributes 
-      ? String(req.query.attributes).split(',').map(a => a.trim())
+    const attributesParam = getQueryString(req, 'attributes');
+    const requestedAttrs = attributesParam 
+      ? attributesParam.split(',').map(a => a.trim())
       : [];
 
     // Format response - must match RelatedObjectsResponse type expected by frontend