* feat(server): distinguish agent vs human CLI actions via X-Agent-ID/X-Task-ID headers
Extract resolveActor helper in handler to centralize agent identity resolution
from X-Agent-ID header with X-Task-ID cross-validation. Fix DeleteComment,
DeleteIssue, and UpdateComment handlers that previously hardcoded "member" as
actor type. Forward MULTICA_TASK_ID as X-Task-ID header from CLI client.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix(server): add debug logging and test coverage for resolveActor
Add slog.Debug on agent/task validation failures for easier debugging.
Add TestResolveActor with 5 cases covering member fallback, valid agent,
non-existent agent, valid task, and mismatched task.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
d41b986cb0