Remove Vue-related files and empty directories

- Delete vue.config.js
- Delete src/App.vue
- Delete src/main.js (old Vue entry point)
- Remove empty directories: src/bin, src/context
- Complete cleanup after React migration

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.local.json

@@ -14,7 +14,12 @@
       "Bash(python3:*)",
       "Bash(git add:*)",
       "Bash(open:*)",
-      "WebFetch(domain:api.syui.ai)"
+      "WebFetch(domain:api.syui.ai)",
+      "Bash(git push:*)",
+      "Bash(find:*)",
+      "Bash(rm:*)",
+      "Bash(grep:*)",
+      "Bash(ls:*)"
     ],
     "deny": []
   }