Add Claude Code adapter live layer with error mapping tests

- introduce `ClaudeCodeAdapter` service and live layer wiring
- map runtime/session/request failures into provider adapter error types
- add coverage for validation, session-not-found mapping, lifecycle forwarding, and event passthrough
0382f4def9Julius Marminge committed on 3/6/2026, 2:12:44 AMparent2e06f7c
3 files changedLine totals unavailable