feat(lidarr): typed HTTP client for v1 API (lookup, add, profiles, ping)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/lidarr/types.go

@@ -0,0 +1,48 @@
+// Package lidarr is a typed HTTP client for Lidarr's v1 API. It is the
+// only place in the codebase that knows about Lidarr's wire format.
+// Callers receive value structs, never raw JSON.
+package lidarr
+
+// LookupResult is the normalized shape returned by Lookup{Artist,Album,Track}.
+// It is what we store on the request row (via the user's request) and
+// what /api/lidarr/search returns to the SPA.
+type LookupResult struct {
+	MBID      string // foreignArtistId / foreignAlbumId / foreignTrackId
+	Name      string // artist name; album/track returns Title here too
+	Secondary string // genre + album count for artist; year for album; album for track
+	ImageURL  string // cover-art URL Lidarr surfaced (may be empty)
+}
+
+// QualityProfile is the dropdown choice in /admin/integrations.
+type QualityProfile struct {
+	ID   int
+	Name string
+}
+
+// RootFolder is the dropdown choice in /admin/integrations.
+type RootFolder struct {
+	Path       string
+	Accessible bool
+	FreeSpace  int64
+}
+
+// AddArtistParams are the fields Lidarr requires on POST /api/v1/artist.
+type AddArtistParams struct {
+	ForeignArtistID  string
+	QualityProfileID int
+	RootFolderPath   string
+	MonitorAll       bool // true => monitor="all"; false => "future"
+}
+
+// AddAlbumParams are the fields Lidarr requires on POST /api/v1/album.
+type AddAlbumParams struct {
+	ForeignAlbumID   string
+	ForeignArtistID  string // Lidarr requires the artist's foreign id too
+	QualityProfileID int
+	RootFolderPath   string
+}
+
+// PingResult is the response shape from GET /api/v1/system/status.
+type PingResult struct {
+	Version string
+}