feat: migrate to DSH 0.1.5-rc.2 with TypeScript refactor, official slot footer and codex selector

package.json

@@ -6,12 +6,21 @@
   "main": "./lib/index.js",
   "exports": {
     ".": {
+      "types": "./lib/types/index.d.ts",
       "default": "./lib/index.js"
     },
-    "./client": "./lib/client.js",
+    "./client": {
+      "types": "./lib/types/client/index.d.ts",
+      "default": "./lib/client.js"
+    },
     "./cordis.patch.yml": "./cordis.patch.yml",
     "./package.json": "./package.json"
   },
+  "scripts": {
+    "build": "node build.cjs && tsc --emitDeclarationOnly",
+    "test": "vitest run",
+    "typecheck": "tsc --noEmit"
+  },
   "dsh": {
     "bundle": {
       "patch": "./cordis.patch.yml"
@@ -30,5 +39,12 @@
   },
   "peerDependencies": {
     "@deepseek-ai/cordis": "^4.0.1"
+  },
+  "devDependencies": {
+    "@types/node": "^22.20.2",
+    "@types/react": "^18.3.1",
+    "esbuild": "^0.28.2",
+    "typescript": "^5.8.2",
+    "vitest": "^3.0.0"
   }
 }