[feat](trx-rs): add AIS decoder mode and frontend

Add dual-channel AIS decode support across the SoapySDR backend, server decode pipeline, and frontend plugins, including the new AIS tab, live bar, and map filtering.

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

Cargo.lock

@@ -2375,6 +2375,13 @@ dependencies = [
  "strength_reduce",
 ]
 
+[[package]]
+name = "trx-ais"
+version = "0.1.0"
+dependencies = [
+ "trx-core",
+]
+
 [[package]]
 name = "trx-app"
 version = "0.1.0"
@@ -2591,6 +2598,7 @@ dependencies = [
  "tokio-serial",
  "toml",
  "tracing",
+ "trx-ais",
  "trx-app",
  "trx-aprs",
  "trx-backend",