OracleReuseTests ran the shim through `#!/usr/bin/env python3` with a PATH
whose Python folder is Homebrew's, which names it only python3.13: the
shim wasn't found (127). The test now gives that PATH a python3 of its own.
test_report_rejects_sources_changed_during_a_run compared a resolved source
path with an unresolved temp root, and macOS's /var is /private/var.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Add version-bound core, world data, geometry, generation and feature implementations with native client/server comparison tools and scoped evidence reports. Apply Horizon project branding.
Workspace tests, Clippy and 147 Python tests passed. Full 51-family survival and expanded provider comparisons are still running; complete gameplay parity and a playable Rust client remain unfinished. Private game artifacts and the isolated simple-block placement work are excluded.
Ludovic Marie