feat: migrate to TypeScript 6 and add tsgo

- Upgrade typescript from ^5 to ^6 across all packages
- Address TS6 breaking changes in tsconfig files:
  - Add explicit types array (new default is [])
  - Remove deprecated baseUrl (paths work without it)
  - Remove redundant esModuleInterop: true
  - Merge DOM.Iterable into DOM lib
- Install @typescript/native-preview for tsgo CLI
- Enable tsgo in VS Code settings

Co-authored-by: Ona <no-reply@ona.com>

apps/admin-dashboard/package.json

@@ -34,7 +34,7 @@
 		"@types/react": "^19.2.5",
 		"@types/react-dom": "^19.2.3",
 		"@vitejs/plugin-react": "^5.1.1",
-		"typescript": "~5.9.3",
+		"typescript": "^6",
 		"vite": "^7.2.4"
 	}
 }

apps/admin-dashboard/tsconfig.app.json

@@ -3,7 +3,7 @@
 		"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
 		"target": "ES2022",
 		"useDefineForClassFields": true,
-		"lib": ["ES2022", "DOM", "DOM.Iterable"],
+		"lib": ["ES2022", "DOM"],
 		"module": "ESNext",
 		"types": ["vite/client"],
 		"skipLibCheck": true,
@@ -23,7 +23,6 @@
 		"erasableSyntaxOnly": true,
 		"noFallthroughCasesInSwitch": true,
 		"noUncheckedSideEffectImports": true,
-		"baseUrl": ".",
 		"paths": {
 			"@/*": ["./src/*"]
 		}

apps/admin-dashboard/tsconfig.json

@@ -2,7 +2,6 @@
 	"files": [],
 	"references": [{ "path": "./tsconfig.app.json" }, { "path": "./tsconfig.node.json" }],
 	"compilerOptions": {
-		"baseUrl": ".",
 		"paths": {
 			"@/*": ["./src/*"]
 		}

apps/aelis-client/package.json

@@ -55,6 +55,6 @@
 		"eas-cli": "^18.0.1",
 		"eslint": "^9.25.0",
 		"eslint-config-expo": "~10.0.0",
-		"typescript": "~5.9.2"
+		"typescript": "^6"
 	}
 }

apps/waitlist-website/package.json

@@ -30,7 +30,7 @@
 		"@types/react": "^19.2.7",
 		"@types/react-dom": "^19.2.3",
 		"tailwindcss": "^4.1.13",
-		"typescript": "^5.9.2",
+		"typescript": "^6",
 		"vite": "^7.1.7",
 		"vite-tsconfig-paths": "^5.1.4"
 	}

apps/waitlist-website/tsconfig.json

@@ -1,18 +1,16 @@
 {
 	"include": ["**/*", "**/.server/**/*", "**/.client/**/*", ".react-router/types/**/*"],
 	"compilerOptions": {
-		"lib": ["DOM", "DOM.Iterable", "ES2022"],
+		"lib": ["DOM", "ES2022"],
 		"types": ["node", "vite/client"],
 		"target": "ES2022",
 		"module": "ES2022",
 		"moduleResolution": "bundler",
 		"jsx": "react-jsx",
 		"rootDirs": [".", "./.react-router/types"],
-		"baseUrl": ".",
 		"paths": {
 			"~/*": ["./app/*"]
 		},
-		"esModuleInterop": true,
 		"verbatimModuleSyntax": true,
 		"noEmit": true,
 		"resolveJsonModule": true,