Clean up unused imports and variables to improve code quality

- Remove unused imports: LocationSubmission from types, Location/ProfanityWord from server
- Remove unused variables: wordText, detectedWords in profanity rejection
- Remove unused parameters: req in skip function, wordId/updates in fallback filter
- Fix regex escaping and destructuring patterns
- Remove unused response variables in tests
- Reduce ESLint issues from 45 to 22 (eliminated all 21 errors, keeping only warnings)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/routes/locations.ts

@@ -2,7 +2,6 @@ import express, { Request, Response, Router } from 'express';
 import rateLimit from 'express-rate-limit';
 import Location from '../models/Location';
 import ProfanityFilterService from '../services/ProfanityFilterService';
-import { LocationSubmission } from '../types';
 
 // Define interfaces for request bodies
 interface LocationPostRequest extends Request {
@@ -30,7 +29,7 @@ export default (locationModel: Location, profanityFilter: ProfanityFilterService
     standardHeaders: true, // Return rate limit info in the `RateLimit-*` headers
     legacyHeaders: false, // Disable the `X-RateLimit-*` headers
     // Skip rate limiting in test environment
-    skip: (req) => process.env.NODE_ENV === 'test'
+    skip: () => process.env.NODE_ENV === 'test'
   });
 
   /**
@@ -215,9 +214,6 @@ export default (locationModel: Location, profanityFilter: ProfanityFilterService
           console.warn(`Submission rejected due to inappropriate language (${analysis.count} word${analysis.count > 1 ? 's' : ''}, severity: ${analysis.severity}) - Original: "${req.body.description}"`);
 
           // Reject any submission with profanity
-          const wordText = analysis.count === 1 ? 'word' : 'words';
-          const detectedWords = analysis.matches.map((m: any) => m.word).join(', ');
-
           res.status(400).json({
             error: 'Submission rejected',
             message: 'Your description contains inappropriate language and cannot be posted. Please revise your description to focus on road conditions and keep it professional.\n\nExample: "Multiple vehicles stuck, black ice present" or "Road very slippery, saw 3 accidents"',

src/server.ts

@@ -19,8 +19,6 @@ import configRoutes from './routes/config';
 import locationRoutes from './routes/locations';
 import adminRoutes from './routes/admin';
 
-// Import types
-import { Location, ProfanityWord } from './types';
 
 const app: Application = express();
 const PORT: number = parseInt(process.env.PORT || '3000', 10);
@@ -84,11 +82,11 @@ function createFallbackFilter(): FallbackFilter {
       success: false,
       error: 'Profanity filter not available - please check server configuration'
     }),
-    removeCustomWord: async (wordId: number) => ({
+    removeCustomWord: async () => ({
       success: false,
       error: 'Profanity filter not available - please check server configuration'
     }),
-    updateCustomWord: async (wordId: number, updates: any) => ({
+    updateCustomWord: async () => ({
       success: false,
       error: 'Profanity filter not available - please check server configuration'
     }),

src/services/ProfanityFilterService.ts

@@ -155,8 +155,8 @@ class ProfanityFilterService {
         .split('')
         .map(char => {
           const leetChars = Object.entries(this.leetMap)
-            .filter(([_, v]) => v === char.toLowerCase())
-            .map(([k, _]) => k);
+            .filter(([, v]) => v === char.toLowerCase())
+            .map(([k]) => k);
 
           if (leetChars.length > 0) {
             const allChars = [char, ...leetChars].map(c =>
@@ -234,7 +234,7 @@ class ProfanityFilterService {
     let normalized = text.toLowerCase();
 
     // Replace multiple spaces/special chars with single space
-    normalized = normalized.replace(/[\s\-\_\*\.]+/g, ' ');
+    normalized = normalized.replace(/[\s\-_*.]+/g, ' ');
 
     // Apply leet speak conversions
     normalized = normalized.split('').map(char =>
@@ -317,7 +317,7 @@ class ProfanityFilterService {
   /**
    * Filter profanity from text
    */
-  filterProfanity(text: string, replacementChar: string = '*'): string {
+  filterProfanity(text: string): string {
     const analysis = this.analyzeProfanity(text);
     return analysis.filtered;
   }

tests/integration/routes/admin.test.ts

@@ -510,7 +510,7 @@ describe('Admin API Routes', () => {
     });
 
     it('should handle malformed JSON in request body', async () => {
-      const response = await request(app)
+      await request(app)
         .post('/api/admin/profanity-words')
         .set('Authorization', `Bearer ${authToken}`)
         .set('Content-Type', 'application/json')
@@ -521,7 +521,7 @@ describe('Admin API Routes', () => {
     });
 
     it('should handle missing content-type header', async () => {
-      const response = await request(app)
+      await request(app)
         .post('/api/admin/profanity-words')
         .set('Authorization', `Bearer ${authToken}`)
         .send('word=test&severity=low&category=test')

tests/integration/routes/public.test.ts

@@ -302,7 +302,7 @@ describe('Public API Routes', () => {
     });
 
     it('should handle malformed JSON', async () => {
-      const response = await request(app)
+      await request(app)
         .post('/api/locations')
         .set('Content-Type', 'application/json')
         .send('{"address": "Test Location"') // Missing closing brace

tests/setup.ts

@@ -1,6 +1,4 @@
 import { Database } from 'sqlite3';
-import fs from 'fs';
-import path from 'path';
 
 // Setup test environment
 process.env.NODE_ENV = 'test';

tests/unit/services/DatabaseService.test.ts

@@ -16,7 +16,7 @@ describe('DatabaseService', () => {
     jest.restoreAllMocks();
     try {
       databaseService.close();
-    } catch (e) {
+    } catch {
       // Ignore close errors in tests
     }
   });