(fix) flutter: lower minimum SDK floor to Flutter 3.24.0 (#84)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: alexey-pelykh

flutter/README.md

@@ -7,6 +7,18 @@
 A USB Video Class (UVC) camera plugin for Flutter based on [UVCCamera](https://uvccamera.org) library for Android,
 brought to you by [Alexey Pelykh](https://alexey-pelykh.com).
 
+## Compatibility
+
+**Flutter 3.29.2+ is strongly recommended.** Flutter 3.27–3.28 enabled Impeller by default on Android, which causes
+black screens on some devices (MediaTek/PowerVR GPUs). This was fixed in Flutter 3.29.0 with automatic GLES fallback
+(and a crash fix in 3.29.2). If you use Flutter 3.27.x–3.28.x and experience a black screen, disable Impeller:
+
+```xml
+<meta-data android:name="io.flutter.embedding.android.EnableImpeller" android:value="false" />
+```
+
+Flutter 3.24–3.26 users are unaffected (Impeller was not default on Android).
+
 ## Usage
 
 The plugin's API is intentionally kept similar to the [camera](https://pub.dev/packages/camera) package. See the

flutter/example/pubspec.yaml

@@ -3,7 +3,7 @@ description: "Demonstrates how to use the uvccamera plugin."
 publish_to: none
 
 environment:
-  sdk: ^3.7.0
+  sdk: ">=3.5.0 <4.0.0"
 
 dependencies:
   flutter:

flutter/pubspec.yaml

@@ -8,8 +8,8 @@ platforms:
   android:
 
 environment:
-  sdk: ^3.7.0
-  flutter: ">=3.29.2"
+  sdk: ">=3.5.0 <4.0.0"
+  flutter: ">=3.24.0"
 
 dependencies:
   flutter: