Drop duplicate bridge/parrot modules and develop-only slot contention tests
that do not match the subscription routing harness on trial/downlink-clean.
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.
Replace internal bridge terminology with routing (RoutingUseCases, AclRouter,
routing_table export). SubscriptionStore remains runtime authority with O(1)
indexes for router and downlink filters. Fix STATIC TG parity on OPTIONS/RPTO,
parrot in-band edge cases, and remove per-packet routing_table export from the
hot path that caused high CPU under multi-hotspot OBP load.
Add real-stack REPEAT and proxy fan-in E2E tests so regressions outside
DeterministicScenario are caught. Remove duplicate or fragile tests,
consolidate monitor remap cases, and document harness vs integration policy.
Rodrigo Pérez