Verified restore, with evidence in the console

Restore is no longer a leap of faith.

• Every restore runs against an ephemeral target and records evidence: archive integrity, pg_restore readability, row-count parity, per-table checksums, policy parity, and a login proof against the restored copy.
• The console restore-evidence viewer renders all of it, so "the backup works" is a claim you can read, not one you take on trust.
• GET /v1/…/backups/{id} now returns the verification evidence alongside the record.
• Verified restore is included in Pro and Scale — never a $100/mo add-on.