[feat](trx-core): add decoder toggle and reset commands

Add aprs_decode_enabled, cw_decode_enabled, aprs_decode_reset_seq, and
cw_decode_reset_seq fields to RigState and RigSnapshot. Add corresponding
RigCommand and ClientCommand variants for toggling and resetting decoders.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>

src/trx-core/src/client.rs

@@ -21,6 +21,10 @@ pub enum ClientCommand {
     Unlock,
     GetTxLimit,
     SetTxLimit { limit: u8 },
+    SetAprsDecodeEnabled { enabled: bool },
+    SetCwDecodeEnabled { enabled: bool },
+    ResetAprsDecoder,
+    ResetCwDecoder,
 }
 
 /// Envelope for client commands with optional authentication token.

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

@@ -19,4 +19,8 @@ pub enum RigCommand {
     SetTxLimit(u8),
     Lock,
     Unlock,
+    SetAprsDecodeEnabled(bool),
+    SetCwDecodeEnabled(bool),
+    ResetAprsDecoder,
+    ResetCwDecoder,
 }

src/trx-core/src/rig/controller/handlers.rs

@@ -500,6 +500,12 @@ pub fn command_from_rig_command(cmd: RigCommand) -> Box<dyn RigCommandHandler> {
         RigCommand::SetTxLimit(limit) => Box::new(SetTxLimitCommand::new(limit)),
         RigCommand::Lock => Box::new(LockCommand),
         RigCommand::Unlock => Box::new(UnlockCommand),
+        // Decoder commands are handled before reaching this function;
+        // map to GetSnapshot as a safe fallback.
+        RigCommand::SetAprsDecodeEnabled(_)
+        | RigCommand::SetCwDecodeEnabled(_)
+        | RigCommand::ResetAprsDecoder
+        | RigCommand::ResetCwDecoder => Box::new(GetSnapshotCommand),
     }
 }
 

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

@@ -23,6 +23,14 @@ pub struct RigState {
     pub server_latitude: Option<f64>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub server_longitude: Option<f64>,
+    #[serde(default)]
+    pub aprs_decode_enabled: bool,
+    #[serde(default)]
+    pub cw_decode_enabled: bool,
+    #[serde(default, skip_serializing)]
+    pub aprs_decode_reset_seq: u64,
+    #[serde(default, skip_serializing)]
+    pub cw_decode_reset_seq: u64,
 }
 
 /// Mode supported by the rig.
@@ -68,6 +76,8 @@ impl RigState {
             server_version: self.server_version.clone(),
             server_latitude: self.server_latitude,
             server_longitude: self.server_longitude,
+            aprs_decode_enabled: self.aprs_decode_enabled,
+            cw_decode_enabled: self.cw_decode_enabled,
         })
     }
 
@@ -110,4 +120,8 @@ pub struct RigSnapshot {
     pub server_latitude: Option<f64>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub server_longitude: Option<f64>,
+    #[serde(default)]
+    pub aprs_decode_enabled: bool,
+    #[serde(default)]
+    pub cw_decode_enabled: bool,
 }