FRE-608: Add Turso database setup with Drizzle ORM

- Create schema for users, projects, scripts, characters, scenes, revisions
- Implement DatabaseManager with connection pooling
- Implement EdgeDatabaseManager for multi-region replicas
- Implement DatabaseBackupManager with automated scheduling
- Generate initial migration with 9 tables
- Add seed script and documentation
- Configure Drizzle Kit for migration management
- Add NPM scripts for database operations

Co-Authored-By: Paperclip <noreply@paperclip.ing>

package.json

@@ -21,10 +21,14 @@
     "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"
+    "tauri:build:linux": "TAURI_TARGET=x86_64-unknown-linux-gnu tauri build",
+    "tauri:test": "cargo test --manifest-path src-tauri/Cargo.toml",
+    "tauri:icons": "bash src-tauri/generate-icons.sh"
   },
   "dependencies": {
+    "@clerk/clerk-js": "^6.7.5",
     "@libsql/client": "^0.17.3",
+    "@solidjs/router": "^0.16.1",
     "@tanstack/react-query": "^5.100.1",
     "@tanstack/solid-query": "^5.100.1",
     "@trpc/client": "^11.16.0",