feat(config): add events section (session timeout + skip rule thresholds)

config.example.yaml

@@ -36,3 +36,12 @@ subsonic:
   # apiKey (OpenSubsonic) and falls back to u+t+s token auth.
   # Env: SMARTMUSIC_SUBSONIC_ALLOW_PLAINTEXT_PASSWORD
   allow_plaintext_password: false
+
+events:
+  # Idle gap (minutes) between play_events that closes a play_session and
+  # starts a new one. Spec §6.
+  session_timeout_minutes: 30
+  # Skip rule (spec §6): a play counts as a SKIP if completion ratio is below
+  # this threshold AND duration played (ms) is below the next threshold.
+  skip_max_completion_ratio: 0.5
+  skip_max_duration_played_ms: 30000