Introduce downlink.py as the single authority for hotspot eligibility (OPTIONS,
slot busy, post-TX GROUP_HANGTIME). send_peer and BRDG fan-out share the same
gate; monitor events carry stream id from BRDG so new QSOs after hangtime
display without replaying calls blocked during the hangtime window.
Planned release: 2.2.0
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.
Narrow send_peers and REPEAT fan-out on inject-only proxies using a
precomputed OPTIONS index, cache connected peer count, and debounce
CONFIG_SND pushes to the monitor.
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.
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.
Multi-hotspot SYSTEM inject must not REPEAT or bridge-downlink TGs to peers
whose RPTO OPTIONS omit the call TG. Exempt parrot/echo 9990–9999 for the
RX_PEER that keyed the service TG.
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.