训练体系整合与标注单阶段化

- 标注：AI 预标注直写 labels_json（去候选确认两阶段）；重叠去重（minIoU）；全量标注按钮
- 训练：脚本迁移入 server/training/（Go 化 prepare_yolo/analyze_rfdetr，保留 train_server.py）；tflite 产物自检并入训练流程（check_tflite）
- 数据目录/权重不进 git；.gitignore 迁移至仓库根

flutter_app/pubspec.lock

@@ -90,7 +90,7 @@ packages:
     source: hosted
     version: "0.11.4"
   camera_android_camerax:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: camera_android_camerax
       sha256: "8516fe308bc341a5067fb1a48edff0ddfa57c0d3cdcc9dbe7ceca3ba119e2577"
@@ -162,7 +162,7 @@ packages:
     source: hosted
     version: "0.3.5+4"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
@@ -497,7 +497,7 @@ packages:
     source: hosted
     version: "3.0.0"
   package_info_plus:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: package_info_plus
       sha256: "468c26b4254ab01979fa5e4a98cb343ea3631b9acee6f21028997419a80e1a20"
@@ -521,7 +521,7 @@ packages:
     source: hosted
     version: "1.9.1"
   path_provider:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path_provider
       sha256: a7f4874f987173da295a61c181b8ee71dab59b332a486b391babf26a1b884825
@@ -765,6 +765,70 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.4.0"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      sha256: f6a7e5c4835bb4e3026a04793a4199ca2d14c739ec378fdfe23fc8075d0439f8
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "6.3.2"
+  url_launcher_android:
+    dependency: transitive
+    description:
+      name: url_launcher_android
+      sha256: b413d49b73867ac08dd2f9890efd3cc11f2a0e577618d50843440a1fb3776c32
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "6.3.32"
+  url_launcher_ios:
+    dependency: transitive
+    description:
+      name: url_launcher_ios
+      sha256: "580fe5dfb51671ae38191d316e027f6b76272b026370708c2d898799750a02b0"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "6.4.1"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      sha256: d5e14138b3bc193a0f63c10a53c94b91d399df0512b1f29b94a043db7482384a
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.2.2"
+  url_launcher_macos:
+    dependency: transitive
+    description:
+      name: url_launcher_macos
+      sha256: "368adf46f71ad3c21b8f06614adb38346f193f3a59ba8fe9a2fd74133070ba18"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.2.5"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      sha256: "552f8a1e663569be95a8190206a38187b531910283c3e982193e4f2733f01029"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.3.2"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      sha256: "85c81589622fbc87c1c683aaea164d3604a7777495a79d91e39ffcdec39ddb34"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.3"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      sha256: "712c70ab1b99744ff066053cbe3e80c73332b38d46e5e945c98689b2e66fc15f"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.1.5"
   uuid:
     dependency: transitive
     description: