chore(config): enable strict TypeScript checking options

- Enable noUncheckedIndexedAccess for safer array/object access
- Add noImplicitOverride, noImplicitReturns for stricter checks
- Configure noUnusedLocals and noUnusedParameters
- Enable verbatimModuleSyntax for better import handling
- Add removeComments for optimized output
- Organize includes to reference cloudflare-env.d.ts explicitly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: ericyangpan

tsconfig.json

@@ -22,8 +22,30 @@
       "@/*": ["./src/*"],
       "@content/*": ["./content/*"]
     },
-    "types": ["./cloudflare-env.d.ts", "node"]
+    "types": ["node"],
+
+    // Strict type checking
+    "noUncheckedIndexedAccess": true,
+    "noImplicitOverride": true,
+    "allowUnusedLabels": false,
+    "allowUnreachableCode": false,
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitReturns": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "forceConsistentCasingInFileNames": true,
+
+    // Output optimization
+    "removeComments": true,
+    "verbatimModuleSyntax": true
   },
-  "include": ["next-env.d.ts", "mdx.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "include": [
+    "next-env.d.ts",
+    "mdx.d.ts",
+    "cloudflare-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts"
+  ],
   "exclude": ["node_modules"]
 }