feat: 新增 textValue 支持结构化字段内容展示

Sources/Services/Feishu/FeishuModels.swift

@@ -96,6 +96,26 @@ enum JSONValue: Decodable {
         return nil
     }
 
+    /// Display text for Feishu fields whose values are represented as
+    /// structured content, such as text fields (`[{"type": "text", "text": "..."}]`).
+    var textValue: String? {
+        switch self {
+        case let .string(value):
+            return value
+        case let .number(value):
+            return String(value)
+        case let .bool(value):
+            return String(value)
+        case let .array(items):
+            let text = items.compactMap(\.textValue).joined()
+            return text.isEmpty ? nil : text
+        case let .object(fields):
+            return fields["text"]?.textValue ?? fields["name"]?.textValue
+        case .null:
+            return nil
+        }
+    }
+
     var firstUserName: String? {
         guard case let .array(items) = self else { return nil }
         for item in items {
@@ -142,21 +162,16 @@ enum BugMapper {
         case let .number(number): return number
         case let .bool(bool): return bool
         case let .array(array):
-            return array.compactMap { item -> String? in
-                if case let .object(fields) = item {
-                    return fields["name"]?.stringValue
-                }
-                return item.stringValue
-            }
+            return array.compactMap(\.textValue)
         case let .object(object):
-            return object["name"]?.stringValue ?? object["text"]?.stringValue
+            return object["name"]?.textValue ?? object["text"]?.textValue
         case .null:
             return nil
         }
     }
 
     private static func stringValue(in fields: [String: JSONValue], key: String) -> String? {
-        fields[key]?.stringValue
+        fields[key]?.textValue
     }
 
     private static func userName(in fields: [String: JSONValue], key: String) -> String? {