Fix CI/CD pipeline issues from code review FRE-4690

- web-ci.yml: Remove web/ path refs (app is at repo root), fix cache paths, update Vercel action to v30
- ios-ci.yml: Fix swift-format tool name, use debug build for PR CI, add TestFlight deployment job, use env var for Xcode path
- Scaffold package.json, tsconfig.json, vite.config.ts for web project at root

tsconfig.json

@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "ESNext",
+    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "skipLibCheck": true,
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["src/**/*.ts", "src/**/*.tsx"]
+}