github-credibility-check v0.1.0-beta

First public beta of github-credibility-check.

Highlights:

• quick, standard, and deep GitHub evidence collection modes
• repository, activity, code-tree, CI, license, Issue/PR, and package-registry signals
• separate credibility and operational adoption-risk outputs
• deterministic six-signal scorecard and override enforcement
• direct-evidence and fixed-commit requirements for severe findings
• eight-case calibration set with a reward-for-star case and negative control
• Python 3.11 validation and repository/archive secret and PII scanning

Beta boundary:
Heuristic scores are decision support. Star anomalies alone do not prove purchased or automated stars, and production adoption still requires current security and compatibility checks.