feat: add contacts phase 2, advanced search, vacation responder, Docker & TOTP 2FA

- Contact groups/lists, vCard import/export (RFC 6350), bulk operations
- Advanced search with JMAP filter panel, search chips, cross-mailbox queries
- Vacation responder with JMAP VacationResponse, settings tab, sidebar indicator
- TOTP two-factor authentication support
- Docker multi-stage build with standalone output and docker-compose
- CSP Report-Only headers and security headers via proxy middleware
- Virtual scrolling for large email lists
- Structured server-side logger (text/JSON, configurable level)
- 450+ tests (contacts, vCard, threads, headers, identity, components)
- Playwright E2E framework setup
- Updated README and ROADMAP with all new features

eslint.config.mjs

@@ -49,12 +49,27 @@ export default [
       },
     },
   },
+  {
+    files: ["**/*.test.{ts,tsx}", "**/*.spec.{ts,tsx}"],
+    languageOptions: {
+      globals: {
+        describe: "readonly",
+        it: "readonly",
+        expect: "readonly",
+        beforeEach: "readonly",
+        afterEach: "readonly",
+        vi: "readonly",
+        test: "readonly",
+      },
+    },
+  },
   {
     ignores: [
       ".next/**",
       "node_modules/**",
       "*.config.js",
       "*.config.mjs",
+      "e2e/**",
     ],
   },
 ];