From a2f021fe943003679fa033b9e44c72a23b326284 Mon Sep 17 00:00:00 2001
From: hailin <hailin.zhao@gdzx.xyz>
Date: Thu, 25 Dec 2025 03:20:27 -0800
Subject: [PATCH] =?UTF-8?q?fix(mobile-app):=20=E4=BF=AE=E5=A4=8D=E7=AD=BE?=
 =?UTF-8?q?=E7=BD=B2=E5=90=88=E5=90=8C=E8=AF=B7=E6=B1=82=E5=AD=97=E6=AE=B5?=
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- signatureImage → signatureBase64
- 添加 signatureHash 字段
- 将 deviceInfo 包装成对象格式 {deviceId, platform}
- 将 latitude/longitude 包装成 location 对象

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 .../services/contract_signing_service.dart    | 30 +++++++++++--------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/frontend/mobile-app/lib/core/services/contract_signing_service.dart b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
index 5f80fa8d..183b16d1 100644
--- a/frontend/mobile-app/lib/core/services/contract_signing_service.dart
+++ b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
@@ -346,12 +346,15 @@ class ContractSigningService {
       debugPrint('[ContractSigningService] Base64 长度: ${signatureBase64.length}');
 
       final requestData = {
-        'signatureImage': signatureBase64,
-        'ipAddress': ipAddress,
-        'deviceInfo': deviceInfo,
-        'userAgent': userAgent,
-        'latitude': latitude,
-        'longitude': longitude,
+        'signatureBase64': signatureBase64,  // 后端期望的字段名
+        'signatureHash': '',  // TODO: 计算签名哈希
+        'deviceInfo': {
+          'deviceId': deviceInfo ?? 'unknown',
+          'platform': 'android',
+        },
+        'location': latitude != null && longitude != null
+            ? {'latitude': latitude, 'longitude': longitude}
+            : null,
       };
       debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/sign');
 
@@ -406,12 +409,15 @@ class ContractSigningService {
       debugPrint('[ContractSigningService] Base64 长度: ${signatureBase64.length}');
 
       final requestData = {
-        'signatureImage': signatureBase64,
-        'ipAddress': ipAddress,
-        'deviceInfo': deviceInfo,
-        'userAgent': userAgent,
-        'latitude': latitude,
-        'longitude': longitude,
+        'signatureBase64': signatureBase64,  // 后端期望的字段名
+        'signatureHash': '',  // TODO: 计算签名哈希
+        'deviceInfo': {
+          'deviceId': deviceInfo ?? 'unknown',
+          'platform': 'android',
+        },
+        'location': latitude != null && longitude != null
+            ? {'latitude': latitude, 'longitude': longitude}
+            : null,
       };
       debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/late-sign');