feat(sources): YouTube Music search + download pipeline (§1C/§1E)

Pluggable fetch source: ytmusicapi search + yt-dlp download (cookies-file guard), DownloadJob entity/repo + DownloadService, download_task worker with exponential-backoff retries, and wired /search, /sources/{source}/search, and /downloads endpoints. Adds youtube_enabled/cookies config, yt-dlp+ytmusicapi deps, and the download_jobs.track_id migration. Snapshot also bundles in-progress storage/tracks/acoustid edits. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-14 14:04:33 +03:00
parent ea880edd57
commit 78007461e1
32 changed files with 2645 additions and 819 deletions
@@ -35,3 +35,9 @@ class DownloadJobModel(UUIDPrimaryKeyMixin, TimestampMixin, Base):
    progress: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    error_message: Mapped[str | None] = mapped_column(Text, nullable=True)
    retry_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
+    # Set once the download finishes and the track is imported — lets the UI
+    # link a completed job to its library track.
+    track_id: Mapped[uuid.UUID | None] = mapped_column(
+        ForeignKey("tracks.id", ondelete="SET NULL"),
+        nullable=True,
+    )