refonte: portfolio statique Astro (design moderne développeur)

- Remplace l'ancien Astro hybrid + admin par un site one-page statique (sortie static)
- Thème clair/sombre sans flash, contenu typé (src/data/content.ts), zéro admin
- Icônes simple-icons (SVG monochrome), polices auto-hébergées (RGPD)
- SEO complet : canonical, Open Graph, Twitter Card, JSON-LD Person, robots.txt, sitemap.xml, image OG 1200x630
- CI Gitea de déploiement FTPS vers Plesk (.gitea/workflows/prod.yml)

package.json

@@ -1,47 +1,23 @@
 {
   "name": "portfolio",
   "type": "module",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "engines": {
-    "node": ">=22.12.0"
+    "node": ">=18.20.8"
   },
   "scripts": {
     "dev": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "start": "HOST=0.0.0.0 PORT=3100 node ./dist/server/entry.mjs",
-    "astro": "astro",
     "check": "astro check",
-    "test": "vitest run",
-    "test:watch": "vitest",
-    "test:coverage": "vitest run --coverage",
-    "hash:password": "node scripts/hash-password.mjs"
+    "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/node": "^10.0.5",
-    "@astrojs/react": "^5.0.3",
-    "@hookform/resolvers": "^5.2.2",
-    "@iconify-icon/react": "^3.0.3",
-    "@tailwindcss/vite": "^4.2.2",
-    "@types/react": "^19.2.14",
-    "@types/react-dom": "^19.2.3",
     "astro": "^6.1.8",
-    "bcryptjs": "^3.0.3",
-    "framer-motion": "^12.38.0",
-    "jose": "^6.2.2",
-    "lenis": "^1.3.23",
-    "react": "^19.2.5",
-    "react-dom": "^19.2.5",
-    "react-hook-form": "^7.75.0",
-    "tailwindcss": "^4.2.2",
-    "zod": "^4.3.6"
+    "simple-icons": "^13.16.0"
   },
   "devDependencies": {
     "@astrojs/check": "^0.9.8",
-    "@types/bcryptjs": "^2.4.6",
-    "@types/node": "^25.6.0",
-    "@vitest/coverage-v8": "^4.1.6",
-    "typescript": "^5.9.3",
-    "vitest": "^4.1.6"
+    "typescript": "^5.9.3"
   }
 }