Replace internal task tracking (TODO.md, FINDINGS.md) with four
structured documentation files covering architecture, tool reference,
development guide, and project history. Trim CLAUDE.md to agent
instructions only — all detailed content now lives in docs/.
- docs/architecture.md: subsystem plugin model, transports, IDE bridge,
AI facade, full package layout
- docs/tools.md: all 49 MCP tools with parameters and descriptions
- docs/development.md: prerequisites, test patterns, adding tools/subsystems
- docs/history.md: split history, 5 phases with commit hashes, known issues
Co-Authored-By: Virgil <virgil@lethean.io>
