SQLite rebuild copy-map preflight

Lets users inspect and verify content-addressed schema migration evidence offline, checking idempotence, reversible rollback, required invariants, and explicit lossy-field disclosure without executing migrations or accessing data.

Enables a language model to run four deterministic data checks it cannot argue with — column-contract validation with an explicit quarantine list, arithmetic reconciliation of opening/movements/closing, distinct entity counting against row counts, and duplicate detection returned for human review — each answering with structured findings and row/column locators. Failures come back as results with reasons, so the model reports exactly which rows and columns are broken rather than asserting the data is clean.

Enables deterministic, read-only structural checks on user-supplied JSON to determine whether institutional registration and release declarations are complete enough for accountable review.

Static checks over an MCP tool surface to find where a caller could do the wrong thing and get no error back.