refactor(split): make the app self-hosting ready

Remove the transitional website auth, admin hooks, SEO and hosted analytics together, then align the app routes, runtime configuration, tests and dependencies. These changes form one atomic cleanup because the filtered app must switch its identity and runtime surfaces as a unit.

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "opensquawk",
+  "name": "opensquawk-app",
   "ssr": false,
   "type": "module",
   "private": true,
@@ -13,25 +13,19 @@
     "postinstall": "nuxt prepare && (git config core.hooksPath .githooks 2>/dev/null || true)",
     "typecheck": "vue-tsc --build",
     "sharp:rebuild": "SHARP_IGNORE_GLOBAL_LIBVIPS=1 yarn rebuild sharp",
-    "import:decision": "tsx --tsconfig tsconfig.scripts.json scripts/import-decision-tree.ts",
     "test": "tsx --tsconfig tsconfig.tests.json --test \"tests/**/*.test.ts\" \"server/**/*.test.ts\" \"shared/**/*.test.ts\""
   },
   "dependencies": {
     "@nuxt/image": "^2.0.0",
     "@nuxtjs/tailwindcss": "^6.14.0",
     "@pinia/nuxt": "^0.11.3",
-    "dotenv": "^17.3.1",
-    "fluent-ffmpeg": "^2.1.3",
-    "leaflet": "^1.9.4",
     "modern-screenshot": "^4.7.0",
     "nodemailer": "^8.0.1",
     "nuxt": "^4.3.1",
     "nuxt-aos": "^1.2.6",
-    "nuxt-module-hotjar": "^1.3.4",
     "nuxt-mongoose": "^1.0.6",
     "openai": "^6.22.0",
     "pinia": "^3.0.4",
-    "three": "^0.183.1",
     "vue": "^3.5.28",
     "vue-router": "^5.0.2",
     "vuetify": "^3.11.8",
@@ -42,9 +36,6 @@
   },
   "packageManager": "yarn@4.9.4",
   "devDependencies": {
-    "@types/fluent-ffmpeg": "^2.1.28",
-    "@types/leaflet": "^1.9.21",
-    "@types/three": "^0.183.0",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",
     "vitest": "^4.1.10",