Fetch full contact details from Starface instead of summary

The contacts list endpoint only returns summaryValues/phoneNumbers.
Now fetch each contact individually via GET /contacts/{id} to get
all fields (blocks/attributes). Also log the detail JSON structure
so we can verify the field mapping is correct.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/StarfaceOutlookSync/Services/StarfaceApiClient.cs

@@ -209,15 +209,34 @@ namespace StarfaceOutlookSync.Services
 
                 if (array.Count == 0) break;
 
-                // Ersten Kontakt als Debug-Info loggen
+                OnDebug?.Invoke($"Seite {page}: {array.Count} Kontakte in Liste");
-                if (firstPage && array.Count > 0)
+
+                // Die Listen-API gibt nur Summary zurueck.
+                // Jeden Kontakt einzeln abrufen fuer alle Felder.
+                foreach (var item in array)
                 {
-                    OnDebug?.Invoke($"Starface API Rohdaten (1. Kontakt):\n{array[0].ToString(Formatting.Indented)}");
+                    var id = item["id"]?.ToString();
+                    if (string.IsNullOrEmpty(id)) continue;
+
+                    try
+                    {
+                        var detailResp = await _http.GetAsync($"{_baseUrl}/contacts/{id}");
+                        if (detailResp.IsSuccessStatusCode)
+                        {
+                            var detailBody = await detailResp.Content.ReadAsStringAsync();
+                            var detailObj = JObject.Parse(detailBody);
+
+                            if (firstPage)
+                            {
+                                OnDebug?.Invoke($"Starface Kontakt-Detail (1. Kontakt):\n{detailObj.ToString(Formatting.Indented)}");
                                 firstPage = false;
                             }
 
-                foreach (var item in array)
+                            contacts.Add(MapFromStarface(detailObj));
-                    contacts.Add(MapFromStarface(item));
+                        }
+                    }
+                    catch { }
+                }
 
                 if (array.Count < pageSize) break;
                 page++;