get_loose_ends now always returns the caller's own loose ends, for every
caller including the manager (ruth) — there is no separate manager
surface, ruth is a normal agent with different default capabilities.
- AgentGetLooseEndsArgs removed; get_loose_ends takes no args.
- Wire Request::GetLooseEnds collapses from an Option<String> target to
a unit variant.
- hive-c0re's handle_get_loose_ends drops the "*" hive-wide branch and
the subtree/capability resolver (resolve_agent_state_target); both
are gone since there is no longer a target to resolve.
- loose_ends::hive_wide and Capability::QueryAgentState removed as
dead code — their only callers were the two functions above.
- is_descendant_of is untouched (still used by lifecycle_handlers.rs
and schedules.rs independently of this change).
- Docs updated: docs/turn-loop/mcp.md, docs/web-ui/dashboard.md,
docs/process/conventions.md (Loose-ends wire shape + capabilities
table), plus the doc comments in hive-core-agent-sock, mcp_config.rs
and capabilities.rs that described the old shape.
Refs #4480
729c5b4f42