Remove React/Ink dependencies and add context window management

- Remove unused React and Ink CLI dependencies to simplify package
- Update provider schema to use maxOutputTokens for clarity
- Add automatic summarization when approaching context window limits
- Simplify message event handling and add cost/token metadata display

🤖 Generated with opencode
Co-Authored-By: opencode <noreply@opencode.ai>

js/package.json

@@ -10,11 +10,7 @@
     "@tsconfig/bun": "^1.0.7",
     "@types/bun": "latest",
     "@types/jsdom": "^21.1.7",
-    "@types/react": "18",
-    "@types/turndown": "^5.0.5",
-    "ink": "^5.2.1",
-    "ink-text-input": "^6.0.0",
-    "react": "^18.0.0"
+    "@types/turndown": "^5.0.5"
   },
   "peerDependencies": {
     "typescript": "5"