Image Docker, CI et docs pour le serveur Rust

Image en trois étapes (frontend Vite, binaire Rust, Debian slim avec
FFmpeg), healthcheck /healthz, dépendances npm propres à l'ancien
serveur retirées, CI Rust (fmt, clippy, tests) et documentation de la
mise à jour au prochain démarrage de la stack.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013qMexTfVRaegbPAgsagCAJ

package.json

@@ -4,22 +4,19 @@
   "type": "module",
   "license": "MIT",
   "scripts": {
-    "dev": "NODE_ENV=development tsx server/index.ts",
-    "build": "vite build && esbuild server/index.ts --platform=node --packages=external --bundle --format=esm --outdir=dist",
-    "start": "NODE_ENV=production node dist/index.js",
+    "dev": "vite",
+    "dev:server": "cargo run --manifest-path server/Cargo.toml",
+    "build": "vite build",
+    "start": "cargo run --release --manifest-path server/Cargo.toml",
     "check": "tsc",
-    "db:push": "drizzle-kit push",
     "test": "vitest run"
   },
   "dependencies": {
-    "@aws-sdk/client-s3": "^3.1016.0",
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/sortable": "^10.0.0",
     "@dnd-kit/utilities": "^3.2.2",
     "@fontsource/montserrat": "^5.3.0",
     "@hookform/resolvers": "^3.10.0",
-    "@jridgewell/trace-mapping": "^0.3.25",
-    "@neondatabase/serverless": "^0.10.4",
     "@radix-ui/react-accordion": "^1.2.4",
     "@radix-ui/react-alert-dialog": "^1.1.7",
     "@radix-ui/react-aspect-ratio": "^1.1.3",
@@ -47,46 +44,20 @@
     "@radix-ui/react-toggle": "^1.1.3",
     "@radix-ui/react-toggle-group": "^1.1.3",
     "@radix-ui/react-tooltip": "^1.2.0",
-    "@remotion/bundler": "^4.0.438",
-    "@remotion/cli": "^4.0.438",
     "@remotion/player": "^4.0.438",
-    "@remotion/renderer": "^4.0.438",
     "@tanstack/react-query": "^5.60.5",
-    "@twemoji/api": "^17.0.2",
-    "@types/bcrypt": "^6.0.0",
-    "@types/multer": "^2.0.0",
-    "@types/node-cron": "^3.0.11",
-    "@types/node-fetch": "^2.6.13",
-    "@types/pg": "^8.15.5",
-    "bcrypt": "^6.0.0",
-    "canvas": "^2.11.2",
     "class-variance-authority": "^0.7.1",
-    "cloudinary": "^2.7.0",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
-    "connect-pg-simple": "^10.0.0",
     "date-fns": "^3.6.0",
     "drizzle-orm": "^0.39.1",
     "drizzle-zod": "^0.7.0",
     "embla-carousel-react": "^8.6.0",
-    "emoji-regex": "^10.6.0",
-    "express": "^4.21.2",
-    "express-rate-limit": "^7.5.1",
-    "express-session": "^1.18.1",
     "framer-motion": "^11.13.1",
-    "helmet": "^8.1.0",
     "html-to-image": "^1.11.13",
-    "html2canvas": "^1.4.1",
     "input-otp": "^1.4.2",
     "lucide-react": "^0.453.0",
-    "memorystore": "^1.6.7",
-    "multer": "^2.0.2",
-    "music-metadata": "^11.12.3",
     "next-themes": "^0.4.6",
-    "node-cron": "^4.2.1",
-    "passport": "^0.7.0",
-    "passport-local": "^1.0.0",
-    "pg": "^8.16.3",
     "react": "^18.3.1",
     "react-day-picker": "^8.10.1",
     "react-dom": "^18.3.1",
@@ -97,15 +68,12 @@
     "react-webcam": "^7.2.0",
     "recharts": "^2.15.2",
     "remotion": "^4.0.438",
-    "sharp": "^0.34.4",
     "tailwind-merge": "^2.6.0",
     "tailwindcss-animate": "^1.0.7",
     "tw-animate-css": "^1.2.5",
     "twemoji": "^14.0.2",
-    "twemoji-parser": "^14.0.0",
     "vaul": "^1.1.2",
     "wouter": "^3.3.5",
-    "ws": "^8.18.0",
     "zod": "^3.24.2",
     "zod-validation-error": "^3.4.0"
   },
@@ -115,27 +83,15 @@
     "@replit/vite-plugin-runtime-error-modal": "^0.0.3",
     "@tailwindcss/typography": "^0.5.15",
     "@tailwindcss/vite": "^4.1.3",
-    "@types/connect-pg-simple": "^7.0.3",
-    "@types/express": "4.17.21",
-    "@types/express-session": "^1.18.0",
     "@types/node": "20.16.11",
-    "@types/passport": "^1.0.16",
-    "@types/passport-local": "^1.0.38",
     "@types/react": "^18.3.11",
     "@types/react-dom": "^18.3.1",
-    "@types/ws": "^8.5.13",
     "@vitejs/plugin-react": "^4.7.0",
     "autoprefixer": "^10.4.20",
-    "drizzle-kit": "^0.31.4",
-    "esbuild": "^0.25.0",
     "postcss": "^8.4.47",
     "tailwindcss": "^3.4.17",
-    "tsx": "^4.20.5",
     "typescript": "5.6.3",
     "vite": "^5.4.20",
     "vitest": "^3.2.7"
-  },
-  "optionalDependencies": {
-    "bufferutil": "^4.0.8"
   }
 }