H3 leftover: the annotation handlers route everything through the sync
service (dedup/LWW/tombstones), leaving the plain Create/Update/Delete
queries for media_notes/media_highlights/media_bookmarks with zero
callers repo-wide (handlers, services, tests). Queries.sql drops them
so H4's row work doesn't carry dead weight; sqlc regen compiles clean,
proving nothing referenced the generated stubs.
Also removes the literal duplicate `AND mi.missing_scan_count = 0`
line in the library-stats query (harmless but confusing).
John O'Keefe
00305ffc7b