chore: release v0.21.3

internal/cat/cat.go

@@ -649,15 +649,29 @@ func (m *Manager) run(b Backend, stop, done chan struct{}, cmds chan func(), pol
 	const reconnectEvery = 5 * time.Second
 	connected := false
 	var lastAttempt time.Time
+	var lastConnErr string // last connect failure logged, so the retry loop says it once
 	tryConnect := func() {
 		if connected || time.Since(lastAttempt) < reconnectEvery {
 			return
 		}
 		lastAttempt = time.Now()
 		if err := b.Connect(); err != nil {
+			// Log it — the message used to live only in RigState.Error, i.e. in a
+			// tooltip. The status pill condenses everything to "OmniRig not found",
+			// so a user reporting that had no way to tell us WHY: the COM HRESULT,
+			// the serial error, the refused TCP connect, all invisible. Logged once
+			// per distinct message so the retry loop doesn't flood the file.
+			if msg := err.Error(); msg != lastConnErr {
+				lastConnErr = msg
+				debugLog.Printf("%s connect failed: %s", b.Name(), msg)
+			}
 			m.update(RigState{Enabled: true, Backend: b.Name(), Connected: false, Error: err.Error(), UpdatedAt: time.Now()})
 			return
 		}
+		if lastConnErr != "" {
+			debugLog.Printf("%s connected (after: %s)", b.Name(), lastConnErr)
+			lastConnErr = ""
+		}
 		connected = true
 	}
 	tryConnect()