Migrate CLI from OpenTUI to Ink framework

This is a complete framework migration that modernizes the terminal UI implementation while maintaining the same user-facing functionality.

🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

Author: brandonkachen

bun.lock

@@ -29,20 +29,25 @@
   },
   "dependencies": {
     "@codebuff/sdk": "workspace:*",
-    "@opentui/core": "^0.1.27",
-    "@opentui/react": "^0.1.27",
+    "chalk": "^5.3.0",
+    "highlight.js": "^11.11.1",
     "immer": "^10.1.3",
+    "ink": "^6.2.3",
+    "ink-gradient": "^3.0.0",
+    "ink-spinner": "^5.0.0",
+    "lowlight": "^3.3.0",
     "react": "^19.0.0",
-    "react-reconciler": "^0.32.0",
     "remark-parse": "^11.0.0",
+    "strip-ansi": "^7.1.0",
+    "string-width": "^7.1.0",
     "unified": "^11.0.0",
-    "yoga-layout": "^3.2.1",
+    "wrap-ansi": "^9.0.0",
     "zustand": "^5.0.8"
   },
   "devDependencies": {
     "@types/bun": "^1.2.11",
     "@types/node": "22",
     "@types/react": "^18.3.12",
-    "@types/react-reconciler": "^0.32.0"
+    "ink-testing-library": "^4.0.0"
   }
 }