Initial commit: Aoi (Аой-тян) — Matrix notifier for Navidrome and discovery-playlist

- aoi.py: poller for Navidrome (main + anime libraries), discovery playlists, release watch for liked/rated artists
- Last.fm enrichment (bio, tags); Bandcamp search links
- config.example.json: safe template; config.json gitignored
- deploy/aoi.service: systemd unit (production)
- assets/banner.png + aoi-avatar.png: persona banner + bot avatar
- Russian README in line with sibling bots (rada/watcher)

deploy/aoi.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=Aoi Navidrome notifier
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=root
+Group=root
+WorkingDirectory=/storage/scripts/aoi
+ExecStart=/storage/scripts/watcher/.venv/bin/python /storage/scripts/aoi/aoi.py
+Restart=always
+RestartSec=5
+TimeoutStopSec=30
+
+[Install]
+WantedBy=multi-user.target