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__/ssl-monitor.test.js

@@ -8,14 +8,14 @@ jest.mock('tls', () => ({
   connect: jest.fn(),
 }));
 
-jest.mock('../fs-helpers', () => ({
+jest.mock('../src/utilities/fs-helpers', () => ({
   readJsonFile: jest.fn().mockResolvedValue(null),
   writeJsonFile: jest.fn().mockResolvedValue(undefined),
 }));
 
 const tls = require('tls');
-const fsHelpers = require('../fs-helpers');
-const SSLMonitor = require('../ssl-monitor');
+const fsHelpers = require('../src/utilities/fs-helpers');
+const SSLMonitor = require('../src/monitoring/ssl-monitor');
 
 function makeSocket({ cert = null, error = null } = {}) {
   const { EventEmitter } = require('events');