fix(ci): sync hypatia-scan.yml to canonical (#12)

Replaces the drifted `hypatia-scan.yml` (older `cd scanner`/`hypatia-v2`
build-step that exits 1 — the env.HOME/Phase-2 sweeps never touched it)
with the canonical rsr-template-repo workflow. Estate drift remediation;
see hyperpolymath/neurophone#41.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath