init: scaffold complet Sakuin — backend NestJS + frontend SvelteKit + CI/CD + deploy VPS

Backend: 5 modules (auth, user, work, list, health), AniList GraphQL proxy,
SuperOAuth PKCE introspection, XP system, migrations TypeORM.
Frontend: SvelteKit adapter-node, PWA manifest, dark theme, pages home/search/list/profile/callback.
Infra: CI/CD Gitea vps-runner, Apache vhost SSL, pm2 sakuin-backend + sakuin-frontend, port 4002.
License: BSL 1.1 (Apache 2.0 en 2028).

frontend/static/manifest.json

@@ -0,0 +1,13 @@
+{
+  "name": "Sakuin",
+  "short_name": "Sakuin",
+  "description": "Ton index manga & anime — gamifié, partageable.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0f0f1a",
+  "theme_color": "#0f0f1a",
+  "icons": [
+    { "src": "/icon-192.png", "sizes": "192x192", "type": "image/png" },
+    { "src": "/icon-512.png", "sizes": "512x512", "type": "image/png" }
+  ]
+}

frontend/static/robots.txt

@@ -0,0 +1,3 @@
+# allow crawling everything by default
+User-agent: *
+Disallow: