feat: add customer field to Bug model with configurable mapping

- Bug model: added optional 'customer' property
- FieldMappings: added 'customerField' (default: 客户名称)
- BugMapper: reads customer value from configured column
- BugRow: displays customer in blue when present
- Settings: Customer field text field in Field Mappings section

Co-Authored-By: Claude <noreply@anthropic.com>

Sources/Models/AppConfig.swift

@@ -16,6 +16,7 @@ struct AppConfig: Codable, Equatable {
         var statusField: String = "Status"
         var assigneeField: String = "Assignee"
         var reporterField: String = "Reporter"
+        var customerField: String = "客户名称"
         var createdAtField: String = "Created At"
         var updatedAtField: String = "Updated At"
 

Sources/Models/Bug.swift

@@ -7,6 +7,7 @@ struct Bug: Identifiable, Equatable, Hashable {
     let status: BugStatus
     let assignee: String
     let reporter: String?
+    let customer: String?
     let createdAt: Date
     let updatedAt: Date
     let feishuURL: URL

Sources/Services/Feishu/FeishuModels.swift

@@ -120,6 +120,7 @@ enum BugMapper {
             status: mapStatus(stringValue(in: fields, key: mappings.statusField), mappings: mappings),
             assignee: userName(in: fields, key: mappings.assigneeField) ?? "Unknown",
             reporter: userName(in: fields, key: mappings.reporterField),
+            customer: stringValue(in: fields, key: mappings.customerField),
             createdAt: FeishuDateParser.parse(rawValue(in: fields, key: mappings.createdAtField)) ?? .distantPast,
             updatedAt: FeishuDateParser.parse(rawValue(in: fields, key: mappings.updatedAtField)) ?? .distantPast,
             feishuURL: FeishuURLBuilder.recordURL(

Sources/Views/MenuBar/BugRow.swift

@@ -29,6 +29,11 @@ struct BugRow: View {
                             .font(.caption2)
                             .foregroundStyle(.secondary)
                     }
+                    if let customer = bug.customer {
+                        Text(customer)
+                            .font(.caption2)
+                            .foregroundStyle(.blue.opacity(0.8))
+                    }
                 }
             }
 

Sources/Views/Settings/SettingsView.swift

@@ -73,6 +73,7 @@ struct SettingsView: View {
                     TextField("Status field", text: $config.fieldMappings.statusField)
                     TextField("Assignee field", text: $config.fieldMappings.assigneeField)
                     TextField("Reporter field", text: $config.fieldMappings.reporterField)
+                    TextField("Customer field", text: $config.fieldMappings.customerField)
                     TextField("Created At field", text: $config.fieldMappings.createdAtField)
                     TextField("Updated At field", text: $config.fieldMappings.updatedAtField)
                 }