fix: correct typo in iOS plugin option name (#3013)

- Change 'with-folly-no-couroutines' to 'with-folly-no-coroutines' in
iOS plugin and installation
  docs

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- Bug Fixes
- Corrected the iOS plugin option name to with-folly-no-coroutines so
the Folly workaround is recognized.

- Documentation
- Updated installation guide to show the corrected option key and added
a migration note.

- Chores
- Added backward compatibility: the old option is still accepted
temporarily and now triggers a one-time deprecation warning to prompt
updates.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: CacaoRick

docs/docs/installation.md

@@ -92,14 +92,16 @@ After installing the package, you need to:
            "react-native-iap",
            {
              "ios": {
-               "with-folly-no-couroutines": true
+               "with-folly-no-coroutines": true
              }
            }
          ]
        ]
      }
    }
    ```
+   Note migration:
+   - This option key was renamed from `with-folly-no-couroutines` to `with-folly-no-coroutines`. Update your Expo config accordingly. For compatibility, the plugin temporarily accepts the old key and logs a deprecation warning.
 
    What this does:
    - Injects `FOLLY_NO_CONFIG=1`, `FOLLY_CFG_NO_COROUTINES=1`, and `FOLLY_HAS_COROUTINES=0` into the Podfile `post_install` block for all Pods targets, preventing `RCT-Folly` from including non‑vendored `<folly/coro/*>` headers.

plugin/src/withIAP.ts

@@ -126,8 +126,9 @@ const withIapAndroid: ConfigPlugin = (config) => {
 
 type IapPluginProps = {
   ios?: {
-    // Intentionally following user-provided key spelling
     // Enable to inject Folly coroutine-disabling macros into Podfile during prebuild
+    'with-folly-no-coroutines'?: boolean;
+    // @deprecated Use 'with-folly-no-coroutines'. Kept for backward compatibility.
     'with-folly-no-couroutines'?: boolean;
   };
 };
@@ -136,7 +137,16 @@ const withIapIosFollyWorkaround: ConfigPlugin<IapPluginProps | undefined> = (
   config,
   props,
 ) => {
-  const enabled = !!props?.ios?.['with-folly-no-couroutines'];
+  const newKey = props?.ios?.['with-folly-no-coroutines'];
+  const oldKey = props?.ios?.['with-folly-no-couroutines'];
+  if (oldKey && !hasLoggedPluginExecution) {
+    // Temporary deprecation notice; remove when old key is dropped
+    WarningAggregator.addWarningIOS(
+      'react-native-iap',
+      "react-native-iap: 'ios.with-folly-no-couroutines' is deprecated; use 'ios.with-folly-no-coroutines'."
+    );
+  }
+  const enabled = !!(newKey ?? oldKey);
   if (!enabled) return config;
 
   return withPodfile(config, (config) => {