fix(dev): Vite-API-Proxy, Auth, Stripe-Mails und Backend-Erweiterungen

- Client: API-Basis-URL (joinApiUrl, /v1-Falle), Vite strictPort + Proxy 127.0.0.1, Nicht-JSON-Fehler

- Server: /api-404 ohne Wildcard-Bug, SPA-Fallback, Auth-Middleware, Cron, Mailer, Crypto

- Routen: OAuth-State, Email/Stripe/Analytics; client/.env.example

Made-with: Cursor

server/package-lock.json

@@ -1,11 +1,11 @@
 {
-  "name": "email-sorter-server",
+  "name": "mailflow-server",
   "version": "2.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "email-sorter-server",
+      "name": "mailflow-server",
       "version": "2.0.0",
       "license": "MIT",
       "dependencies": {
@@ -18,7 +18,9 @@
         "googleapis": "^144.0.0",
         "imapflow": "^1.2.8",
         "node-appwrite": "^14.1.0",
-        "stripe": "^17.4.0"
+        "node-cron": "^4.2.1",
+        "nodemailer": "^8.0.4",
+        "stripe": "^17.7.0"
       },
       "devDependencies": {
         "jsdom": "^27.4.0"
@@ -1119,6 +1121,15 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/imapflow/node_modules/nodemailer": {
+      "version": "7.0.13",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.13.tgz",
+      "integrity": "sha512-PNDFSJdP+KFgdsG3ZzMXCgquO7I6McjY2vlqILjtJd0hy8wEvtugS9xKRF2NWlPNGxvLCXlTNIae4serI7dinw==",
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
@@ -1448,6 +1459,15 @@
         "node-fetch-native-with-agent": "1.7.2"
       }
     },
+    "node_modules/node-cron": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/node-cron/-/node-cron-4.2.1.tgz",
+      "integrity": "sha512-lgimEHPE/QDgFlywTd8yTR61ptugX3Qer29efeyWw2rv259HtGBNn1vZVmp8lB9uo9wC0t/AT4iGqXxia+CJFg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/node-fetch": {
       "version": "2.7.0",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
@@ -1497,9 +1517,9 @@
       }
     },
     "node_modules/nodemailer": {
-      "version": "7.0.13",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.13.tgz",
-      "integrity": "sha512-PNDFSJdP+KFgdsG3ZzMXCgquO7I6McjY2vlqILjtJd0hy8wEvtugS9xKRF2NWlPNGxvLCXlTNIae4serI7dinw==",
+      "version": "8.0.4",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-8.0.4.tgz",
+      "integrity": "sha512-k+jf6N8PfQJ0Fe8ZhJlgqU5qJU44Lpvp2yvidH3vp1lPnVQMgi4yEEMPXg5eJS1gFIJTVq1NHBk7Ia9ARdSBdQ==",
       "license": "MIT-0",
       "engines": {
         "node": ">=6.0.0"