Add tests for accounts login shield and proxy log retention service

- Implement tests for accounts login shield detection, verifying behavior when login fails with HTML JSON parse syntax error.
- Create tests for proxy log retention service, ensuring expired logs are deleted based on retention days and that cleanup is skipped when retention is disabled.
- Add tests for token router cache, validating that route snapshots are maintained within TTL until explicitly invalidated.
- Introduce necessary mock setups and database seeding for comprehensive testing.

src/server/services/tokenRouter.siteStatus.test.ts

@@ -11,6 +11,7 @@ describe('TokenRouter site status guard', () => {
   let db: DbModule['db'];
   let schema: DbModule['schema'];
   let TokenRouter: TokenRouterModule['TokenRouter'];
+  let invalidateTokenRouterCache: TokenRouterModule['invalidateTokenRouterCache'];
   let dataDir = '';
 
   beforeAll(async () => {
@@ -23,6 +24,7 @@ describe('TokenRouter site status guard', () => {
     db = dbModule.db;
     schema = dbModule.schema;
     TokenRouter = tokenRouterModule.TokenRouter;
+    invalidateTokenRouterCache = tokenRouterModule.invalidateTokenRouterCache;
   });
 
   beforeEach(() => {
@@ -33,9 +35,11 @@ describe('TokenRouter site status guard', () => {
     db.delete(schema.accountTokens).run();
     db.delete(schema.accounts).run();
     db.delete(schema.sites).run();
+    invalidateTokenRouterCache();
   });
 
   afterAll(() => {
+    invalidateTokenRouterCache();
     delete process.env.DATA_DIR;
   });