feat: add TypeScript and build configuration

- Add tsconfig.json with ES2020 target and strict mode
- Convert tailwind.config.js to TypeScript
- Update package.json with build scripts:
  - build:ts - Compile TypeScript
  - build:ts:watch - Watch mode for development
  - Updated paths for web/ directory structure
- Set up proper TypeScript compilation pipeline

tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "ES2020",
+    "lib": ["ES2020", "DOM"],
+    "outDir": "./web/static",
+    "rootDir": "./web/src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "declaration": false,
+    "sourceMap": false,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": [
+    "web/src/**/*.ts"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}