[Bug] IME Input Handling: Unintended Message Sending on Enter During Kanji Conversion

Bug Description
Mac版Claude Desktopでメッセージ編集中に漢字変換のためにEnterを押すと、メッセージが誤送信されます。Web版ではそもそも新規メッセージ作成中であっても、漢字変換のたまにEnterを押して際にご送信されます。なぜ、いつまでもこのような基本的なエラーが放置されているのでしょうか。日本語で内在化しやすい最も一般的なエラーなはずなので、初めからこのようなバグは想定して、内在化しないようにしてほしいです。早急に修正してください。Open AIではこのような問題は発生したことはありません。

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 1.0.113
• Feedback ID: 08a96a79-b39b-41dd-b11b-a8e906c26934

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at uV (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:1184)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:912\n    at Array.map (<anonymous>)\n    at EX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:903)\n    at XHB (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3026:9556)\n    at rD (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:84:19415)\n    at fl (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:42814)\n    at H9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38355)\n    at nf (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38283)\n    at WC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38137)","timestamp":"2025-09-15T02:52:07.041Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at uV (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:1184)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:912\n    at Array.map (<anonymous>)\n    at EX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:903)\n    at XHB (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3026:9556)\n    at rD (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:84:19415)\n    at fl (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:42814)\n    at H9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38355)\n    at nf (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38283)\n    at WC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38137)","timestamp":"2025-09-15T02:52:07.049Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at uV (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:1184)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:912\n    at Array.map (<anonymous>)\n    at EX (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:903)\n    at XHB (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3026:9556)\n    at rD (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:84:19415)\n    at fl (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:42814)\n    at H9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38355)\n    at nf (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38283)\n    at WC (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:86:38137)","timestamp":"2025-09-15T02:52:07.237Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at uV (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:1184)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1770:912\n    at Array.map (<anonymous>)\n    at E

Note: Error logs were truncated.