nx_mvault_layout.nx

nx_mvault_layout.nx -- DSM-native on-disk layout for vault blobs. GOAL (operator 2026-07-17): "structured on disk ... so it works with the synology dsm os but still has all of our capabilities so i dont have a million folders and files." LAYOUT: <root>/<class>/<type>/<shard>/<cid16>_<source>.<ext> class = gen | real (the two major sections) type = image|gif|video|audio|story|page|manga|model3d|audiobook shard = 2 hex chars of the CID (<=256 dirs per type) file = <cid16>_<source>.<ext> (real ext => DSM Photos/Video index it; CID + source VISIBLE in File Station) FAN-OUT BOUND: classes(2) x types(<=10) x shards(256) = <=5120 leaf dirs, NEVER per-item folders. Metadata does NOT live in per-item sidecars -- it lives in the seg-store (nx_mvault_record), a few segment files. So on-disk file count ~= media count, folder count ~= 5120. No million-folders trap. SELF-DESCRIBING: class/type/source/cid are all recoverable from the path alone, so DSM-side browsing works even without the seg-store; the seg-store is the rich classified+searchable index over the same blobs (ref = path). Composes nx_mvault_ingest (mv_class_str / mv_type_str). license_tier: ORIGINAL