controller/sharing.md (code-verified vs controller v0.144.0 + felhom-samba
1.0.0); capability map 'Files from Windows Explorer / Mac Finder (SMB server)'
MISSING -> IMPLEMENTED (PROVEN-LIVE pending Viktor's Explorer leg); ROADMAP R-7
-> shipped-slice-1 with the slice-2 remainder, and the backup design fork split
out as R-7b (shares are classified but not in any live backup run yet).
