Introduces internal/session with Entry and Attempt types, Append
(O_APPEND JSONL writer) and Read (line scanner, nil on missing file).
Raw material for retrospective and trainer workers.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Probes Anthropic and LiteLLM endpoints to detect the current operating
tier (Full / LANOnly / Airplane) so downstream code can gate model
selection and managed-agent availability without manual configuration.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Remove cmd/supervisor/supervisor binary from git (was accidentally
committed) and add it to .gitignore. Move LITELLM_API_KEY from the
prompt string into the subprocess env, preventing it from appearing
in error log output when JSON parsing fails.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
