Migrate from Yarn 1 to pnpm (#10465)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Eric Bailey <git@esb.lol>

patches/react-native-date-picker@5.0.13.patch

@@ -0,0 +1,17 @@
+diff --git a/ios/RNDatePicker.h b/ios/RNDatePicker.h
+index 480746eb7acfbe86f67547d9e1de7a5be4d5faf2..13d30cb547195993dfcb4005cc0d248de9ac391a 100644
+--- a/ios/RNDatePicker.h
++++ b/ios/RNDatePicker.h
+@@ -15,6 +15,7 @@ NS_ASSUME_NONNULL_END
+ #else
+ #import "DatePicker.h"
+ #import <UIKit/UIKit.h>
++#include <string>
+ 
+ @interface RNDatePicker : DatePicker
+ 
+@@ -22,4 +23,3 @@ NS_ASSUME_NONNULL_END
+ @end
+ 
+ #endif
+-