AgentCore 0.11.0

Added

• AgentLoopHooks.resolve_turn_tools, an optional hook the loop calls at the
  top of every turn: returning a TurnToolSet(tools=..., visible=...) rebinds
  the turn's tool map, the parser's known-name set and the tool-bound LLM;
  returning None (the default) keeps the current binding and costs nothing.
  This is the one seam that lets a turn bind a tool the run did not start with —
  the loop otherwise freezes tool_map / tool_names / llm_with_tools once,
  outside the turn loop. A product that reconfigures its tool surface mid-run
  (installs an MCP server, disables a tool) resolves the new set here; a product
  that does not supply the hook is byte-for-byte unaffected.

  TurnToolSet.tools is the full callable set for the turn. TurnToolSet.visible
  optionally narrows it by writing the existing _llm_allowed_tools channel,
  which both hides the rest from the request and refuses them if called; leave
  it None for a tool that must stay callable while hidden (deferred loading),
  which a product filters at the LLM boundary instead. TurnToolSet is exported
  from agent_core.runtime.loop.