Development status of Feature Flags, Snapshots, and Real-time push

Hi Azure App Configuration Emulator team,

I'm exploring the emulator for local development and noticed that the README mentions some features as "WIP" (Work in Progress):

- **Feature Flags**: Currently only supported through naming conventions (`.appconfig.featureflag/*`)
- **Configuration Snapshots**: API endpoints exist but storage implementation shows TODO comments
- **Real-time push**: No SignalR implementation found

**Questions:**
1. Are there any plans to implement dedicated Feature Flags management UI and evaluation engine?
2. Will the Configuration Snapshots storage layer be completed?
3. Is real-time push (SignalR) functionality planned for the emulator?

**Context:**
I'm considering using the emulator for local development but want to understand which features will be available to ensure consistency with the cloud service.

Thanks for the great work on this project!

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