"inkwell.db" and "blobs" were spelled out in the ffi and the desktop (whose copy of DB_FILE sat in the crossover shim). The layout is the core's, the same on every client, so the names are now core constants and both clients read them. DRY pass #2, batch 1, F4 (#5372). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>