update seanime docs: qBittorrent config, extensions, container doc, arriman note

hosts/romm.yaml

@@ -0,0 +1,27 @@
+# Generated by mcp/build_host_files.py from inventory.yaml.
+# Do NOT edit by hand — your changes will be overwritten.
+# Source of truth: ../inventory.yaml
+name: romm
+kind: lxc
+os: linux
+role: rom-manager
+host: strong
+pve_id: 134
+lan_ip: 192.168.8.249
+mesh_globals:
+  primary: netbird
+  accepted:
+  - netbird
+  - tailscale
+mounts:
+- /mnt/media_local
+public_host: roms.hubris.network
+notes:
+- Docker host for RomM (romm.app) self-hosted ROM manager. Created 2026-07-05.
+- MariaDB sidecar at /opt/romm/docker-compose.yml.
+- ROMs on ludo-lvm media volume at /mnt/media_local/roms.
+- 1 core / 2 GiB RAM / 16 GiB rootfs (ludo-lvm).
+see_also:
+- containers/134-romm.md
+mcp_endpoint: https://mcp.hubris.network/mcp
+secrets_issuance_endpoint: https://secrets.hubris.network/issue