feat: enrich RSS items without IDs via TMDB title search

Items from RSS feeds that have no media ID (tmdb/imdb/tvdb) are now
enriched automatically using TMDB's search API. The release name is
parsed to extract a clean title and year, then searched against TMDB
to retrieve the TMDB ID before validation.

- Add media/tmdb package with SearchMovies, SearchShows, and
  ExtractTitleAndYear (parses torrent release names)
- Add EnrichFeedItemWithTmdbId to media.Client, called in rss/process.go
  before the ID validation switch
- Add --run-now flag to nabarr run to trigger all feeds immediately
- Wire media.Client through rss.Client and rssJob
- Merge feature/add-tag-option (tag support for Sonarr/Radarr)

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

cmd/nabarr/main.go

@@ -39,7 +39,9 @@ var (
 		Verbosity int    `type:"counter" default:"0" short:"v" env:"APP_VERBOSITY" help:"Log level verbosity"`
 
 		// commands
-		Run  struct{} `cmd help:"Run"`
+		Run struct {
+			RunNow bool `type:"bool" default:"0" short:"n" help:"Run all feeds immediately without waiting for cron"`
+		} `cmd help:"Run"`
 		Test struct {
 			Pvr      string `type:"string" required:"1" help:"PVR to test item against" placeholder:"sonarr"`
 			Id       string `type:"string" required:"1" help:"Metadata ID of item to test" placeholder:"tvdb:121361"`
@@ -171,7 +173,7 @@ func main() {
 	if ctx.Command() == "run" {
 		// rss
 		log.Trace().Msg("Initialising rss")
-		r := rss.New(cfg.Rss, c, pvrs)
+		r := rss.New(cfg.Rss, c, pvrs, m)
 		for _, feed := range cfg.Rss.Feeds {
 			if err := r.AddJob(feed); err != nil {
 				log.Error().
@@ -182,6 +184,10 @@ func main() {
 		}
 		rssState = r.Start()
 
+		if cli.Run.RunNow {
+			r.RunAll()
+		}
+
 		// wait for shutdown signal
 		waitShutdown()
 	} else {