* feat: add Claude adapter improvements for HITL support
- Add question and permission handling for Claude sessions
- Add Claude sender channel for interactive communication
- Add stream event and control request handling
- Update agent compatibility documentation
* fix: restore Claude HITL streaming input and permission handling
- Add streaming_input field to SpawnOptions for Claude stdin streaming
- Enable --input-format stream-json, --permission-prompt-tool stdio flags
- Pipe stdin for Claude (not just Codex) in spawn_streaming
- Update Claude capabilities: permissions, questions, tool_calls, tool_results, streaming_deltas
- Fix permission mode normalization to respect user's choice instead of forcing bypass
- Add acceptEdits permission mode support
- Add libc dependency for is_running_as_root check
