feat: Maya fork — merge PR BeehiveInnovations#411 (9 new models) + trim to 5 core tools

Merged community PR BeehiveInnovations#411 adding GPT-5.4, Gemini 3.1 Pro, Claude Opus 4.6,
Grok 4.1, and 5 other frontier models to the OpenRouter catalog.

Deleted 13 tools, keeping only the 5 we use:
- consensus (multi-model debate)
- chat (direct model access)
- debug (root cause analysis)
- thinkdeep (extended reasoning)
- codereview (structured code review)

Removed: precommit, planner, challenge, apilookup, analyze, refactor,
testgen, secaudit, docgen, tracer, version, listmodels, clink.
Each replaced by existing tools in our stack (Context7, deploy hooks,
EnterPlanMode, CLAUDE.md directives, PreToolUse hook).

9,757 lines removed. Clean, focused fork.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Natasha-Claude-Code