feat(app): in-app asset picker (wechat_assets_picker) - unlimited multi-select with range selection

Review fixes: per-asset originFile error isolation (failed asset skipped, not whole batch); drop maxSdkVersion from READ_MEDIA_VISUAL_USER_SELECTED (API 34+, no upper bound); originFile doc accuracy (API 30+ direct path vs Android 10 ScopedCache copy).

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

apps/mobile/pubspec.lock

@@ -109,26 +109,26 @@ packages:
     dependency: transitive
     description:
       name: camera_android_camerax
-      sha256: "977f54512d338b3b36d7f82929794886766d8f41ae84a48fe103eb0106ecfe25"
+      sha256: a9d527411429f97976dc1f97b0dbe57560c9d3ae482e2f45b7d0a2a61c6bf8f9
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.7.4+8"
+    version: "0.7.5"
   camera_avfoundation:
     dependency: transitive
     description:
       name: camera_avfoundation
-      sha256: "843247230a583e04742ea1434ce3f91e536760922fab67c72ce46aa34fac3e9d"
+      sha256: e409a731fad3fca10daa9567cf981720398659e6390f871a4e0f576058ff8940
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.10.3"
+    version: "0.10.3+1"
   camera_platform_interface:
     dependency: transitive
     description:
       name: camera_platform_interface
-      sha256: "4524ca6eb4176b066864036ad4fe02c3e4863e63b77eadc21a5bf56824f43498"
+      sha256: "9365babc7488a9e93d0ed6dcccd917619fb12ea6f9e601519e1191d4890ee2fe"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.13.1"
+    version: "2.14.0"
   camera_web:
     dependency: transitive
     description:
@@ -233,6 +233,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.7"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "09bad715f418841f976c77db72d5398dc1253c21fb9c0c7f0b0b985860b2d58e"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.2"
   dart_style:
     dependency: transitive
     description:
@@ -281,6 +289,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.35.0"
+  extended_image:
+    dependency: transitive
+    description:
+      name: extended_image
+      sha256: e81d801cd692921f152834e01f39bba8b3d6302c48ad420d499c6062a7e24737
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "10.1.0"
+  extended_image_library:
+    dependency: transitive
+    description:
+      name: extended_image_library
+      sha256: "1f9a24d3a00c2633891c6a7b5cab2807999eb2d5b597e5133b63f49d113811fe"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "5.0.1"
   fake_async:
     dependency: transitive
     description:
@@ -462,10 +486,10 @@ packages:
     dependency: "direct main"
     description:
       name: fluwx
-      sha256: "4b526d281be8560a490bd1b945373a23ab2a12088c8fc5997ffb31cc6fb41082"
+      sha256: "766439fadfcaf29063cd89b330953d46f395b79a8840e377a060e2f6ada9c187"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "6.0.2"
+    version: "6.0.4"
   fuchsia_remote_debug_protocol:
     dependency: transitive
     description: flutter
@@ -503,6 +527,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.2"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "43b67b8f43321ab066817dfac5619596c98bb1b61624e77203bb4351785f9699"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.15.7"
   http:
     dependency: transitive
     description:
@@ -511,6 +543,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.6.0"
+  http_client_helper:
+    dependency: transitive
+    description:
+      name: http_client_helper
+      sha256: "8a9127650734da86b5c73760de2b404494c968a3fd55602045ffec789dac3cb1"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.0.0"
   http_multi_server:
     dependency: transitive
     description:
@@ -563,10 +603,10 @@ packages:
     dependency: transitive
     description:
       name: image_picker_ios
-      sha256: ee3885b6fcd71958fbc79770dd194c63371439d536d69c47b279171a486482ae
+      sha256: "852a7762962f3bb3ad54ef1d342669e41557f466033a676baa8876b367cf4050"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.8.13+7"
+    version: "0.8.13+8"
   image_picker_linux:
     dependency: transitive
     description:
@@ -644,6 +684,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.7.2"
   json_annotation:
     dependency: transitive
     description:
@@ -740,6 +788,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.19.2"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.0"
   nm:
     dependency: transitive
     description:
@@ -828,6 +884,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "7.0.2"
+  photo_manager:
+    dependency: transitive
+    description:
+      name: photo_manager
+      sha256: "2d00a785b501bf1e5f6180bbef772846e767be11d45d11112b63092ef54a419e"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.12.0"
+  photo_manager_image_provider:
+    dependency: transitive
+    description:
+      name: photo_manager_image_provider
+      sha256: b6015b67b32f345f57cf32c126f871bced2501236c405aafaefa885f7c821e4f
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.2.0"
   platform:
     dependency: transitive
     description:
@@ -868,6 +940,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "5.0.6"
+  provider:
+    dependency: transitive
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "6.1.5+1"
   pub_semver:
     dependency: transitive
     description:
@@ -1217,6 +1297,54 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.2.0"
+  video_player:
+    dependency: transitive
+    description:
+      name: video_player
+      sha256: "8c837b570dccb9ae6ff73d2e0b03c7e708bfefd3bd1194faa7f3e7f200dfc399"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.14.0"
+  video_player_android:
+    dependency: transitive
+    description:
+      name: video_player_android
+      sha256: d27054dea34d748a44f06d433a57005d2aac69944485b0abbaed3303dbcfa3f1
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.12.2"
+  video_player_avfoundation:
+    dependency: transitive
+    description:
+      name: video_player_avfoundation
+      sha256: "2fc56e537324a19eb649fca991aa308ac961b5406292876fa657b062de461fd8"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.12.0"
+  video_player_platform_interface:
+    dependency: transitive
+    description:
+      name: video_player_platform_interface
+      sha256: "92c0fbabe20c788e71fd10d26cea998d0d253282e65d145aed0818731cf593ce"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "6.9.0"
+  video_player_web:
+    dependency: transitive
+    description:
+      name: video_player_web
+      sha256: "9f3c00be2ef9b76a95d94ac5119fb843dca6f2c69e6c9968f6f2b6c9e7afbdeb"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.0"
+  visibility_detector:
+    dependency: transitive
+    description:
+      name: visibility_detector
+      sha256: dd5cc11e13494f432d15939c3aa8ae76844c42b723398643ce9addb88a5ed420
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.4.0+2"
   vm_service:
     dependency: transitive
     description:
@@ -1265,6 +1393,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.2.0"
+  wechat_assets_picker:
+    dependency: "direct main"
+    description:
+      name: wechat_assets_picker
+      sha256: ccd92f3e8c968e2cbad939bce82b454e798a7669c1e4ab74e871822ce2440b2d
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "10.1.3"
+  wechat_picker_library:
+    dependency: transitive
+    description:
+      name: wechat_picker_library
+      sha256: "5cb61b9aa935b60da5b043f8446fbb9c5077419f20ccc4856bf444aec4f44bc1"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.7"
   win32:
     dependency: transitive
     description: