fix: bug while creating a new profile

app.go

@@ -608,7 +608,8 @@ func (a *App) startup(ctx context.Context) {
 	// Route CAT/OmniRig debug lines into the unified app log (they used to go
 	// to a separate cat.log in the old HamLog folder, which users couldn't find).
 	cat.LogSink = applog.Printf
-	audio.LogSink = applog.Printf // capture audio-goroutine panics in the app log
+	audio.LogSink = applog.Printf  // capture audio-goroutine panics in the app log
+	extsvc.LogSink = applog.Printf // log raw QRZ (and other) service responses for diagnosis
 	applog.Printf("startup: data dir = %s", dataDir)
 	// The local SQLite file ALWAYS holds per-operator configuration — settings,
 	// station profiles, rigs/antennas, cluster nodes, UDP, QSL templates, award

frontend/src/components/SettingsModal.tsx

@@ -133,8 +133,10 @@ const emptyProfile = (): Profile => ({
   is_active: false,
   sort_order: 0,
   db: { backend: '', host: '', port: 3306, user: '', password: '', database: '' },
-  created_at: '' as any,
-  updated_at: '' as any,
+  // Server-managed timestamps — send null (NOT "") so Go's time.Time unmarshal
+  // leaves the zero value instead of failing to parse an empty RFC3339 string.
+  created_at: null as any,
+  updated_at: null as any,
 });
 
 interface Props {

internal/extsvc/qrz.go

@@ -16,6 +16,10 @@ import (
 // subscription used elsewhere for callsign data — they're different keys.
 const qrzAPIURL = "https://logbook.qrz.com/api"
 
+// LogSink receives diagnostics such as raw QRZ responses. Set to applog.Printf
+// at startup; defaults to a no-op so the package is usable without wiring.
+var LogSink = func(string, ...any) {}
+
 // UploadQRZ pushes one ADIF record to the QRZ.com logbook identified by
 // apiKey. It returns OK when the QSO is inserted or already present
 // (QRZ reports a duplicate as a FAIL with a "duplicate" reason, which we
@@ -67,6 +71,7 @@ func UploadQRZ(ctx context.Context, client *http.Client, apiKey, adifRecord stri
 	if resp.StatusCode != http.StatusOK {
 		return UploadResult{}, fmt.Errorf("qrz: http %d: %s", resp.StatusCode, strings.TrimSpace(string(body)))
 	}
+	LogSink("qrz: INSERT raw response: %s", strings.TrimSpace(string(body)))
 
 	return parseQRZResponse(string(body))
 }
@@ -171,6 +176,7 @@ func TestQRZ(ctx context.Context, client *http.Client, apiKey string) (string, e
 	}
 	defer resp.Body.Close()
 	body, _ := io.ReadAll(io.LimitReader(resp.Body, 64*1024))
+	LogSink("qrz: STATUS raw response: %s", strings.TrimSpace(string(body)))
 	vals, err := url.ParseQuery(strings.TrimSpace(string(body)))
 	if err != nil {
 		return "", fmt.Errorf("qrz: bad response: %w", err)