FRE-592: Fix remaining code review blockers and add tests

- Replace in-memory Maps with Drizzle ORM queries for all CRUD operations
- Use integer IDs matching SQLite schema instead of UUIDs
- Fix scriptId to projectId inconsistency in characters and scenes
- Add project ownership verification on all mutation procedures
- Make getCharacter/getScene procedures protected (not public)
- Proper JWT-based userId validation via context
- Add cascade delete for characters/relationships/scenes on project deletion
- Add verifyProjectOwnership helper for authorization checks
- Rewrite tests with createCallerFactory pattern for tRPC v11
- Use better-sqlite3 for in-memory test database
- Split vitest config into separate file from vite config

package.json

@@ -12,25 +12,49 @@
     "server:dev": "tsx watch server/websocket/index.ts",
     "server:build": "tsc -p tsconfig.server.json",
     "lint": "eslint src/ server/",
-    "lint:fix": "eslint src/ server/ --fix"
+    "lint:fix": "eslint src/ server/ --fix",
+    "db:generate": "drizzle-kit generate",
+    "db:push": "drizzle-kit push",
+    "db:migrate": "drizzle-kit migrate",
+    "db:seed": "tsx src/db/seed.ts",
+    "tauri:dev": "tauri dev",
+    "tauri:build": "tauri build",
+    "tauri:build:macos": "TAURI_TARGET=x86_64-apple-darwin tauri build",
+    "tauri:build:windows": "TAURI_TARGET=x86_64-pc-windows-msvc tauri build",
+    "tauri:build:linux": "TAURI_TARGET=x86_64-unknown-linux-gnu tauri build"
   },
   "dependencies": {
+    "@libsql/client": "^0.17.3",
+    "@tanstack/react-query": "^5.100.1",
+    "@tanstack/solid-query": "^5.100.1",
+    "@trpc/client": "^11.16.0",
+    "@trpc/react-query": "^11.16.0",
+    "@trpc/server": "^11.16.0",
+    "@types/node": "^25.6.0",
+    "@types/peerjs": "^0.0.30",
+    "drizzle-kit": "^0.31.10",
+    "drizzle-orm": "^0.45.2",
+    "peerjs": "^1.5.5",
     "solid-js": "^1.8.14",
-    "yjs": "^13.6.12",
+    "ws": "^8.16.0",
     "y-websocket": "^1.5.0",
-    "ws": "^8.16.0"
+    "yjs": "^13.6.12",
+    "zod": "^4.3.6"
   },
   "devDependencies": {
+    "@tauri-apps/cli": "^2.1.0",
+    "@types/better-sqlite3": "^7.6.13",
     "@types/ws": "^8.5.10",
     "@typescript-eslint/eslint-plugin": "^7.0.2",
     "@typescript-eslint/parser": "^7.0.2",
+    "better-sqlite3": "^12.9.0",
     "eslint": "^8.56.0",
     "eslint-plugin-solid": "^0.13.2",
+    "tsx": "^4.7.1",
     "typescript": "^5.3.3",
     "vite": "^5.1.4",
     "vite-plugin-solid": "^2.8.2",
-    "vitest": "^1.3.1",
-    "tsx": "^4.7.1"
+    "vitest": "^1.3.1"
   },
   "engines": {
     "node": ">=18.0.0"