feat: restructure as pnpm monorepo with Tauri desktop shell

- Migrate to packages/web + packages/desktop workspace layout via git mv
- Add Tauri v2 desktop shell with @tauri-apps/plugin-http for CORS bypass
- Configure Turborepo with package-level dependsOn build graph
- Add semantic-release with exec plugin for GHA output and disabled PR comments
- Fix http:default capability scope to allow all HTTP/HTTPS origins
- Add Vite Tauri integration (clearScreen, TAURI_DEV_HOST, target, envPrefix)
- Add semantic-release.yml and release.yml GitHub Actions workflows
- Fix all Biome lint errors (noArrayIndexKey, noNonNullAssertion, button types)

packages/desktop/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "@openconcho/desktop",
+  "private": true,
+  "scripts": {
+    "dev": "tauri dev",
+    "build": "tauri build",
+    "tauri": "tauri"
+  },
+  "dependencies": {
+    "@openconcho/web": "workspace:*"
+  },
+  "devDependencies": {
+    "@tauri-apps/cli": "^2"
+  }
+}