Bump VERSION to 0.3.0 and add the 0.3.0 release-notes entry (local playlists, watch
later as a playlist, YouTube mirror + two-way sync, sort + undo/redo, rail sorting).
Bump VERSION to 0.2.0 and add release notes covering the Mine/Library shared-feed
scope, dynamic faceted filter chips (live counts, hide non-matching, Any/All topic
match), surprise-me reshuffle, share-view links, and the deep-backfill status
clarity fixes.
Add a VERSION file (0.1.0) and inject APP_VERSION/GIT_SHA/BUILD_DATE as Docker
build-args (both stages; Vite inlines them into the SPA). New public GET
/api/version returns app_version, git_sha, build_date and the Alembic head as the
database revision. deploy.sh and the localdev build pass the args.
