[feat](trx-rs): add VDES decoder mode support

Add a new trx-vdes decoder path alongside AIS, wire VDES through the server/frontend decode pipeline, and fix the web map so AIS vessel symbols load correctly and the TRX receiver marker appears when location data arrives.

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

src/trx-core/src/audio.rs

@@ -16,6 +16,7 @@ pub const AUDIO_MSG_CW_DECODE: u8 = 0x04;
 pub const AUDIO_MSG_FT8_DECODE: u8 = 0x05;
 pub const AUDIO_MSG_WSPR_DECODE: u8 = 0x06;
 pub const AUDIO_MSG_AIS_DECODE: u8 = 0x07;
+pub const AUDIO_MSG_VDES_DECODE: u8 = 0x08;
 
 /// Maximum payload size (1 MB) to reject bogus frames early.
 const MAX_PAYLOAD_SIZE: u32 = 1_048_576;

src/trx-core/src/decode.rs

@@ -12,6 +12,8 @@ use serde::{Deserialize, Serialize};
 pub enum DecodedMessage {
     #[serde(rename = "ais")]
     Ais(AisMessage),
+    #[serde(rename = "vdes")]
+    Vdes(VdesMessage),
     #[serde(rename = "aprs")]
     Aprs(AprsPacket),
     #[serde(rename = "cw")]
@@ -53,6 +55,37 @@ pub struct AisMessage {
     pub destination: Option<String>,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct VdesMessage {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ts_ms: Option<i64>,
+    pub channel: String,
+    pub message_type: u8,
+    pub repeat: u8,
+    pub mmsi: u32,
+    pub crc_ok: bool,
+    pub bit_len: usize,
+    pub raw_bytes: Vec<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub lat: Option<f64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub lon: Option<f64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub sog_knots: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub cog_deg: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub heading_deg: Option<u16>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub nav_status: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub vessel_name: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub callsign: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub destination: Option<String>,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct AprsPacket {
     #[serde(skip_serializing_if = "Option::is_none")]

src/trx-core/src/rig/state.rs

@@ -71,6 +71,7 @@ pub enum RigMode {
     WFM,
     FM,
     AIS,
+    VDES,
     DIG,
     PKT,
     Other(String),