Normalize all Python sources to the standard ADN copyright block with
complete GPLv3 notice. Add legacy attribution on routing and dmr_utils
ports; drop SemVer wording from changelog and fix an unused test import.
Require subscription_store in BridgeUseCases and route timer, OPTIONS,
static TG, and OBP mutations through store ops with export-only BRIDGES shim.
Fix dashboard YAML static TG fallback and sole-hotspot monitor remap for
dynamic UA when a bridge leg is active.
Rodrigo Pérez