v2.12.3 — MCP tool descriptions + build fix

v2.12.3 — Follow-up to v2.12.2

This is a follow-up release to v2.12.2, not a new feature release.

Changes

• MCP tool descriptions updated for Glama TDQS scoring (behavior, output, usage docs)
• Removed deprecated license classifier for PEP 639 compliance
• Agent-readable onboarding docs (llms.txt, docs/onboarding/agent-intake.md)

Version alignment

• v2.12.2 — Main release (PyPI, MCP Registry, GitHub Release)
• v2.12.3 — Build/description follow-up (Glama mirror)

Channels

Channel	Version
PyPI	2.12.2
MCP Registry	2.12.2
Glama	2.12.3
GitHub Release	v2.12.2 + v2.12.3

Full changelog: v2.12.2...v2.12.3