Replace go-imap library with custom IMAP client, simplify CV layout styles, bump vite, move SEED_DB to backend

- Rewrite email_imap.go to use a minimal hand-rolled IMAP client instead of go-imap/go-message,
  for better compatibility with Outlook's non-standard responses
- Consolidate and simplify CVLayout.vue CSS overrides
- Bump vite from 7.1.11 to 7.3.2
- Move SEED_DB env var from nginx to backend in dev compose
- Add /app/src/wasm volume exclusion in dev compose

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vue/package-lock.json

@@ -24,7 +24,7 @@
       },
       "devDependencies": {
         "@vitejs/plugin-vue": "^6.0.1",
-        "vite": "^7.1.11",
+        "vite": "^7.3.2",
         "vite-plugin-top-level-await": "^1.6.0",
         "vite-plugin-vue-devtools": "^8.0.3",
         "vite-plugin-wasm": "^3.6.0"
@@ -3840,9 +3840,9 @@
       }
     },
     "node_modules/vite": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.1.tgz",
-      "integrity": "sha512-w+N7Hifpc3gRjZ63vYBXA56dvvRlNWRczTdmCBBa+CotUzAPf5b7YMdMR/8CQoeYE5LX3W4wj6RYTgonm1b9DA==",
+      "version": "7.3.2",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.2.tgz",
+      "integrity": "sha512-Bby3NOsna2jsjfLVOHKes8sGwgl4TT0E6vvpYgnAYDIF/tie7MRaFthmKuHx1NSXjiTueXH3do80FMQgvEktRg==",
       "license": "MIT",
       "dependencies": {
         "esbuild": "^0.27.0",