refactor: add effect-ts and refactor codes

package.json

@@ -39,6 +39,8 @@
   },
   "dependencies": {
     "@anthropic-ai/claude-code": "^1.0.98",
+    "@effect/platform": "^0.92.1",
+    "@effect/platform-node": "^0.98.3",
     "@hono/zod-validator": "^0.7.2",
     "@radix-ui/react-avatar": "^1.1.10",
     "@radix-ui/react-checkbox": "^1.3.3",
@@ -51,6 +53,8 @@
     "@tanstack/react-query": "^5.85.5",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "effect": "^3.18.4",
+    "es-toolkit": "^1.40.0",
     "hono": "^4.9.5",
     "jotai": "^2.13.1",
     "lucide-react": "^0.542.0",