Switch the committed userProvided embedder dimension 768 -> 1024 to match
bge-m3, the planned v2 default (research B already recommended it as the
Arabic+English choice; ADR 0005 previously carried e5-base/768 as the
example default, an inconsistency this resolves). Free to change now since
v1 writes no vectors.
Updated: meilisearch-settings.json, ADR 0003/0005, ir-schema.json,
SYNTHESIS, README, and A-meilisearch config/prose. Remaining 768 mentions
are legitimate (alternative 768-dim models; nomic-embed-text's real dim).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>