DC-005: Fix all 138 broken test paths after src/ refactor

After the DC-005 module reorganization (41 files moved into src/ subdirs),
138 test suites failed because the refactor script's path-rewrite logic
missed three categories:

1. Files inside src/ doing 'require("./src/...")' — should be 'require("../...")'
2. Files in src/X/Y/ doing 'require("../../../src/...")' — should be 'require("../../...")'
3. Test files in __tests__/ with leftover 'require("../../../src/...")' paths

Root cause: the original refactor script ran before all files were moved,
so it computed relative paths against stale filesystem state.

Result:
- 30/30 test suites pass
- 879/879 tests pass (was: 18/30 suites, 614/687 tests)

Also fixed:
- routes/apps/restore.js: wrong responses import path
- routes/*/*.js: '../../src/utilities/X' → '../src/utilities/X' (depth 2 routes)

dashcaddy-api/__tests__/auto-restart-manager.test.js

@@ -9,14 +9,14 @@
  */
 
 const EventEmitter = require('events');
-const { AutoRestartManager, DEFAULT_POLICY } = require('../auto-restart-manager');
+const { AutoRestartManager, DEFAULT_POLICY } = require('../src/managers/auto-restart-manager');
 
-jest.mock('../fs-helpers', () => ({
+jest.mock('../src/utilities/fs-helpers', () => ({
   readJsonFile: jest.fn().mockResolvedValue({}),
   writeJsonFile: jest.fn().mockResolvedValue(undefined),
 }));
 
-const fsHelpers = require('../fs-helpers');
+const fsHelpers = require('../src/utilities/fs-helpers');
 
 function makeManager(overrides = {}) {
   const servicesStateManager = {