PRE-RELEASE v0.6.0

Describe the ipng_stats_logtail UDP feature in debian/control alongside
the per-VIP / per-device counter description, so the package metadata
reflects what the module actually ships.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

debian/control

@@ -34,6 +34,16 @@ Description: nginx dynamic module for per-VIP, per-device traffic counters
  device= and ipng_source_tag= parameters to the nginx listen
  directive, mapping interface names to source tags.
  .
+ The module also provides an ipng_stats_logtail http-level directive
+ that ships every request as a UDP datagram to a collector, using a
+ named nginx log_format (so $ipng_source_tag and $server_addr are
+ available alongside the standard access-log variables). Each worker
+ holds a private in-memory buffer flushed on size or timer, over a
+ per-worker SOCK_DGRAM socket resolved once at configuration time.
+ Delivery is fire-and-forget — zero disk I/O, no backpressure — and
+ an if=$variable parameter suppresses selected requests (e.g. health
+ checks) before the format is rendered.
+ .
  Typical use cases include GRE tunnel fleets, VLAN trunks, or any
  deployment where traffic arrives on distinct interfaces and
  per-interface observability is needed.