Add sqliteproof

[OrbitalKeyAi]

PRAGMA integrity_check detects damage well, but answers with page numbers:

Page 4: btreeInitPage() returns error code 11

sqliteproof answers the questions you actually have when a database goes bad:

orders      damaged   392/400 rows, 8 lost, breaks after row 182
customers   intact    400/400
audit_log   intact    400/400

MIT, zero dependencies, Python 3.9+. Opens the database read-only, and reports UNKNOWN rather than "clean" when the damage prevents a determination.

Tested against databases built by SQLite and then corrupted at known page offsets: 3/3 localised to the correct table, 0 false alarms, 0 false-clean.