修复 AMap 真机链接错：补 3 个系统 framework + 永久文档化

真机首次跑 ylgamehall 时 linker 报 7 个 Undefined symbol：
- _CNCopyCurrentNetworkInfo / _CNCopySupportedInterfaces / _SCNetworkReachability*
  → SystemConfiguration.framework
- _OBJC_CLASS_$_CTTelephonyNetworkInfo → CoreTelephony.framework
- _OBJC_CLASS_$_EAAccessoryManager → ExternalAccessory.framework

根因：AMap 是 fat 静态库（`Vendor/AMap/*.framework`），它内部引用的系统 API
不会被自动带入 transitive 依赖，必须项目方手动 link。CocoaPods 时代由
podspec 自动声明（daoqi msext 走 Pods 故未在 pbxproj 显式 link
ExternalAccessory）；本项目走 Vendor 手动接入路线，必须显式补齐。

工程：pbxproj 加 3 个 PBXBuildFile + PBXFileReference（Xcode UI 操作自动写入）

文档（永久记录避免重蹈）：
- Vendor/AMap/README.md「工程接入步骤」第 5 步补齐 3 个系统 framework
  + 列出每个 framework 对应的 symbol
- Vendor/AMap/README.md 末尾加「如果未来真机链接报 C++ symbol 缺失」
  备用方案（加 libc++.tbd，daoqi 已加；当前 AMap 2.12.0 未触发）
- docs/SDK-Integration-Guide.md §A.2 第 5 步同步

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Vendor/AMap/README.md

@@ -16,10 +16,23 @@
 2. 点 `+` → Add Other → Add Files → 把 `Vendor/AMap/AMapFoundationKit.framework` 和 `AMapLocationKit.framework` 一起加入
 3. 两个都设为 **Do Not Embed**（高德 fat `.framework` 是静态库，不能 Embed；Embed 会触发链接器对 `__OBJC` 段重复符号错误）
 4. Build Settings → Framework Search Paths 自动会被 Xcode 写入 `$(PROJECT_DIR)/Vendor/AMap`
-5. Clean Build Folder 后 BuildProject
+5. **必须额外 link 3 个系统 framework**（关键！否则真机链接器报 Undefined symbol，模拟器可能不报）：
+   - **SystemConfiguration.framework** ← `_CNCopyCurrentNetworkInfo` / `_SCNetworkReachability*`
+   - **CoreTelephony.framework** ← `_OBJC_CLASS_$_CTTelephonyNetworkInfo`
+   - **ExternalAccessory.framework** ← `_OBJC_CLASS_$_EAAccessoryManager`
+
+   操作：同样 `+` → 搜索框输入 framework 名 → Add（Embed = Do Not Embed）。
+
+   原因：AMap 是静态库（fat .framework），它内部引用的系统 API 不会被自动带入 transitive 依赖，必须项目方手动 link。CocoaPods 时代由 podspec 自动声明这些依赖（daoqi msext 走 Pods 故未在 pbxproj 显式 link ExternalAccessory），但本项目走 Vendor 手动接入路线，必须显式补齐。
+
+6. Clean Build Folder 后 BuildProject
 
 接入完毕后，源码内 `#if canImport(AMapLocationKit)` 守卫将激活真实路径。
 
+## 如果未来真机链接报 C++ symbol 缺失（`std::__1::*`）
+
+加 **libc++.tbd**（同样 `+` 搜索）— 高德 SDK 内部含 C++ 代码，部分版本需要显式 link 系统 C++ 库。daoqi msext 已显式 link `libc++.tbd` + `libc++.1.tbd`；当前 ylgamehall 在 2.12.0 上未触发，先不加；触发再补。
+
 ## 已知限制：M 芯片 Mac 模拟器无法链接
 
 **症状**：M Mac + iOS-simulator target 链接报 `Building for 'iOS-simulator', but linking in object file (... AMapLocationKit[arm64]) built for 'iOS'`。

docs/SDK-Integration-Guide.md

@@ -42,7 +42,13 @@
    - `Vendor/AMap/AMapFoundationKit.framework`
    - `Vendor/AMap/AMapLocationKit.framework`
 4. 两个的 **Embed** 列都选 **Do Not Embed**（关键，别错——静态 fat framework，Embed 会触发 `__OBJC` 段重复符号错）
-5. ⌘B 编译 — **target 必须选真机**或 Generic iOS Device，模拟器 target 会因 simulator-arm64 slice 缺失而链接失败（按设计）
+5. **同一面板再 `+` 加 3 个系统 framework**（关键！漏一个真机链接器立即报 Undefined symbol）：
+   - **SystemConfiguration.framework**
+   - **CoreTelephony.framework**
+   - **ExternalAccessory.framework**
+
+   全部 **Do Not Embed**。详细原因见 `Vendor/AMap/README.md` 「工程接入步骤」第 5 步。
+6. ⌘B 编译 — **target 必须选真机**或 Generic iOS Device，模拟器 target 会因 simulator-arm64 slice 缺失而链接失败（按设计）
 
 ### A.3 添加七牛 SPM 依赖（远程）
 

ylgamehall.xcodeproj/project.pbxproj

@@ -13,6 +13,9 @@
 		1A2954E02FE99C2C009E703E /* WechatOpenSDK-NoPay.xcframework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954DE2FE99C2C009E703E /* WechatOpenSDK-NoPay.xcframework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		1A2954E32FE99C53009E703E /* AMapFoundationKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954E22FE99C53009E703E /* AMapFoundationKit.framework */; };
 		1A2954E62FE99C63009E703E /* AMapLocationKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954E52FE99C63009E703E /* AMapLocationKit.framework */; };
+		1A2954ED2FE9BA49009E703E /* SystemConfiguration.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954EC2FE9BA49009E703E /* SystemConfiguration.framework */; };
+		1A2954EF2FE9BA6E009E703E /* CoreTelephony.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954EE2FE9BA6E009E703E /* CoreTelephony.framework */; };
+		1A2954F12FE9BA7C009E703E /* ExternalAccessory.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1A2954F02FE9BA7C009E703E /* ExternalAccessory.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -33,6 +36,9 @@
 		1A2954DE2FE99C2C009E703E /* WechatOpenSDK-NoPay.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; name = "WechatOpenSDK-NoPay.xcframework"; path = "Vendor/WechatSDK/WechatOpenSDK-NoPay.xcframework"; sourceTree = "<group>"; };
 		1A2954E22FE99C53009E703E /* AMapFoundationKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AMapFoundationKit.framework; path = Vendor/AMap/AMapFoundationKit.framework; sourceTree = "<group>"; };
 		1A2954E52FE99C63009E703E /* AMapLocationKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AMapLocationKit.framework; path = Vendor/AMap/AMapLocationKit.framework; sourceTree = "<group>"; };
+		1A2954EC2FE9BA49009E703E /* SystemConfiguration.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = SystemConfiguration.framework; path = System/Library/Frameworks/SystemConfiguration.framework; sourceTree = SDKROOT; };
+		1A2954EE2FE9BA6E009E703E /* CoreTelephony.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreTelephony.framework; path = System/Library/Frameworks/CoreTelephony.framework; sourceTree = SDKROOT; };
+		1A2954F02FE9BA7C009E703E /* ExternalAccessory.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = ExternalAccessory.framework; path = System/Library/Frameworks/ExternalAccessory.framework; sourceTree = SDKROOT; };
 		1A714BD22FE8047A00913338 /* ylgamehall.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ylgamehall.app; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
 
@@ -64,8 +70,11 @@
 			files = (
 				1A2954622FE840DA009E703E /* ZIPFoundation in Frameworks */,
 				1A2954E62FE99C63009E703E /* AMapLocationKit.framework in Frameworks */,
+				1A2954EF2FE9BA6E009E703E /* CoreTelephony.framework in Frameworks */,
 				1A2954E32FE99C53009E703E /* AMapFoundationKit.framework in Frameworks */,
 				1A2954DA2FE97D61009E703E /* Qiniu in Frameworks */,
+				1A2954ED2FE9BA49009E703E /* SystemConfiguration.framework in Frameworks */,
+				1A2954F12FE9BA7C009E703E /* ExternalAccessory.framework in Frameworks */,
 				1A2954DF2FE99C2C009E703E /* WechatOpenSDK-NoPay.xcframework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -76,6 +85,9 @@
 		1A2954DB2FE99B2F009E703E /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				1A2954F02FE9BA7C009E703E /* ExternalAccessory.framework */,
+				1A2954EE2FE9BA6E009E703E /* CoreTelephony.framework */,
+				1A2954EC2FE9BA49009E703E /* SystemConfiguration.framework */,
 				1A2954E52FE99C63009E703E /* AMapLocationKit.framework */,
 				1A2954E22FE99C53009E703E /* AMapFoundationKit.framework */,
 				1A2954DE2FE99C2C009E703E /* WechatOpenSDK-NoPay.xcframework */,