Fix race condition: paused enrichment workers making API calls on startup

Worker threads were started before paused flag was set, allowing one
loop iteration (and API call) before pause took effect. Now sets
paused=True BEFORE start() so the thread sees it immediately. Fixes
the Spotify rate limit re-trigger on every container restart for users
with paused enrichment. Also increased max-retries rate limit ban
from 1 hour to 4 hours to prevent endless retry cycles.

web_server.py

@@ -43620,9 +43620,10 @@ try:
     from database.music_database import MusicDatabase
     spotify_enrichment_db = MusicDatabase()
     spotify_enrichment_worker = SpotifyWorker(database=spotify_enrichment_db)
-    spotify_enrichment_worker.start()
     if config_manager.get('spotify_enrichment_paused', False):
-        spotify_enrichment_worker.pause()
+        spotify_enrichment_worker.paused = True  # Set BEFORE start() to prevent race condition
+    spotify_enrichment_worker.start()
+    if spotify_enrichment_worker.paused:
         print("✅ Spotify enrichment worker initialized (paused — restored from config)")
     else:
         print("✅ Spotify enrichment worker initialized and started")
@@ -43917,9 +43918,10 @@ try:
     from database.music_database import MusicDatabase
     genius_db = MusicDatabase()
     genius_worker = GeniusWorker(database=genius_db)
-    genius_worker.start()
     if config_manager.get('genius_enrichment_paused', False):
-        genius_worker.pause()
+        genius_worker.paused = True
+    genius_worker.start()
+    if genius_worker.paused:
         print("✅ Genius enrichment worker initialized (paused — restored from config)")
     else:
         print("✅ Genius enrichment worker initialized and started")