fix(#263): log parse error in getConnectionProfiles (#332)

Adds a debug log to AuthManager.getConnectionProfiles when JSON parsing
fails, instead of silently swallowing the exception and returning an
empty list. This helps diagnose corrupted or malicious connection
profile data without affecting production stability.

Closes #263

app/src/main/java/com/m57/hermescontrol/data/local/AuthManager.kt

@@ -103,6 +103,9 @@ object AuthManager {
                 >() {}.type
             gson.fromJson(json, type) ?: emptyList()
         } catch (e: Exception) {
+            if (com.m57.hermescontrol.BuildConfig.DEBUG) {
+                android.util.Log.w("AuthManager", "Failed to parse connection profiles", e)
+            }
             emptyList()
         }
     }