[feat](trx-rs): add GetSatPasses protocol command for server-side TLE management

TLE refresh now happens only on trx-server (once at startup, then every
24h). Client fetches satellite predictions from server via new
GetSatPasses fast-path command and caches them locally, refreshing
every 5 minutes. Removes spawn_tle_refresh_task from trx-client.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-protocol/src/codec.rs

@@ -263,6 +263,7 @@ mod tests {
             rig_id: Some("hf".to_string()),
             state: None,
             rigs: None,
+            sat_passes: None,
             error: None,
         };
         let json = serde_json::to_string(&resp).unwrap();
@@ -279,6 +280,7 @@ mod tests {
             rig_id: None,
             state: None,
             rigs: None,
+            sat_passes: None,
             error: Some("bad".to_string()),
         };
         let json = serde_json::to_string(&resp).unwrap();
@@ -296,6 +298,7 @@ mod tests {
             rig_id: Some("server".to_string()),
             state: None,
             rigs: None,
+            sat_passes: None,
             error: None,
         };
         let json = serde_json::to_string(&resp).unwrap();

src/trx-protocol/src/mapping.rs

@@ -19,6 +19,9 @@ pub fn client_command_to_rig(cmd: ClientCommand) -> RigCommand {
         ClientCommand::GetRigs => {
             unreachable!("GetRigs is handled in the listener before reaching rig_task")
         }
+        ClientCommand::GetSatPasses => {
+            unreachable!("GetSatPasses is handled in the listener before reaching rig_task")
+        }
         ClientCommand::GetState => RigCommand::GetSnapshot,
         ClientCommand::SetFreq { freq_hz } => RigCommand::SetFreq(Freq { hz: freq_hz }),
         ClientCommand::SetCenterFreq { freq_hz } => RigCommand::SetCenterFreq(Freq { hz: freq_hz }),

src/trx-protocol/src/types.rs

@@ -15,6 +15,7 @@ use trx_core::WfmDenoiseLevel;
 pub enum ClientCommand {
     GetState,
     GetRigs,
+    GetSatPasses,
     SetFreq { freq_hz: u64 },
     SetCenterFreq { freq_hz: u64 },
     SetMode { mode: String },
@@ -95,5 +96,8 @@ pub struct ClientResponse {
     /// Populated only for GetRigs responses.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub rigs: Option<Vec<RigEntry>>,
+    /// Populated only for GetSatPasses responses.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub sat_passes: Option<trx_core::geo::PassPredictionResult>,
     pub error: Option<String>,
 }