chore: bootstrap monorepo workspace and shared schemas

.gitignore

@@ -0,0 +1,35 @@
+# dependencies
+node_modules/
+.pnpm-store/
+
+# build artifacts
+dist/
+build/
+.turbo/
+*.tsbuildinfo
+
+# env / secrets
+.env
+.env.local
+.env.*.local
+
+# uploads (dev)
+apps/backend/uploads/
+!apps/backend/uploads/.gitkeep
+
+# prisma
+apps/backend/prisma/dev.db
+apps/backend/prisma/migrations/dev/
+
+# logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+
+# editor / os
+.DS_Store
+Thumbs.db
+.idea/
+.vscode/*
+!.vscode/extensions.json
+!.vscode/settings.example.json