[SDK-235] Add ability to sync and get messages

[lposen]

🔹 JIRA Ticket(s) if any

• SDK-235

✏️ Description

• Add ability to sync messages
• Add ability to get messages

Testing

• Run the setup
• Login and then click on the "Embedded" tab
• Click "Sync messages"
  • In the Xcode Console, you should see something that looks like this:

     💛 17:55:06.1810:0x600001836640:ReactIterableAPI:syncEmbeddedMessages():512
     💚 17:55:06.2020:0x600001836640:Pending:init(value:):199
     💚 17:55:06.2050:0x600001836640:Pending:init(value:):199
     💚 17:55:06.7080:0x60000185fc80:Pending:deinit:215
     💚 17:55:06.7090:0x60000185fc80:Pending:deinit:215
    

• Click "Get messages"
• If you have embedded messages which are active, you should see the data for them in the emulator.

Setup

• cd into root and run yarn install
• cd into example and run yarn install
• cd into ios and run bundle exec pod install
• open two separate terminals.
• In Terminal 1
  • run watchman watch-del-all
  • run yarn start --reset-cache
• In Terminal 2
  • cd into ios
  • run open ReactNativeSdkExample.xcworkspace
  • Once Xcode opens the project, choose an emulator then click the play button to run it.

[github-actions]

Lines	Statements	Branches	Functions
	62.72% (392/625)	38.64% (97/251)	61.5% (139/226)

[qltysh]

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[Copilot]

Pull request overview

This PR adds the ability to sync embedded messages and retrieve embedded messages with optional placement ID filtering for the iOS platform. The Android implementation already exists in the codebase.

Changes:

• Added iOS native implementation for syncEmbeddedMessages() and getEmbeddedMessages() methods
• Added serialization support for IterableEmbeddedMessage to convert to dictionary format
• Simplified the example app usage to pass placement IDs directly instead of chaining promises

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
ios/RNIterableAPI/Serialization.swift	Adds toDict() extension for IterableEmbeddedMessage to serialize messages for React Native
ios/RNIterableAPI/ReactIterableAPI.swift	Implements syncEmbeddedMessages() and getEmbeddedMessages() methods with placement ID filtering
ios/RNIterableAPI/RNIterableAPI.mm	Exports the new methods for both new and legacy React Native architectures
example/src/components/Embedded/Embedded.tsx	Simplifies the getEmbeddedMessages callback to accept placement IDs directly as a parameter

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