v0.3.0

Declare the user's own tool by their trigger sentence, not by a capability region.

Breaking: declare_my_tool now takes a required triggers: list[str] and description is optional. Every declaration from 0.2.0 fails against the current router with 422 no_trigger, so this is the version that works.

• declare_my_tool(name, triggers, ...) sends the user's sentences verbatim; the router's trigger head reads them per route.
• The pre-declare suggest_private_regions call is gone. It gated declaration on an anchor match that never decided routing, and spent a shared-GPU inference doing it. capabilities remains an optional pass-through and suggest_my_tool_regions an optional tool.
• update_my_tool takes triggers (replaces the whole list).
• A single string passed for triggers is wrapped rather than iterated into characters.
• Instructions teach the trigger model, context.situation, and answering a consider block.