These files had silent `except Exception: pass` blocks but no module
logger. Added `import logging` + `logger = logging.getLogger(__name__)`
at the top of each, then replaced the silent excepts with
`logger.debug(...)`.
- core/replaygain.py — 4 sites (id3 txxx + vorbis + mp4 atom reads)
- core/wishlist/presence.py — 3 sites (wishlist row parsing + queries)
- core/runtime_state.py — 1 site (activity toast emit)
- core/automation/signals.py — 1 site (collect known signals)
- core/download_engine/rate_limit.py — 1 site (plugin rate_limit_policy)
- api/system.py — 1 site (hydrabase status probe)
- api/search.py — 1 site (hydrabase search)
Refs #369
8219771304