22 scripts used docker without verifying it's present. Consistent with the
pattern already established in Docker_Essentials scripts. Added after acquire_lock
and before detect_hosts in each script's setup section.
- downloaders_reset: connection check block before slskd API sections;
triggers PUT /api/v0/server reconnect if disconnected, polls 60s,
gates Stuck Searches and Dead Transfer Records on SLSKD_CONNECTED
- Sync all modified/new/deleted files from v2 refactor across Docker_Essentials,
Media, Monitors, Partnership, Rsync, Tools, Transcodes, unRAID_Essentials,
common.sh, master confs, and new Manual/README docs