"Tailing" in Discover

**What the feature is**

"Tailing" in Discover: An optional Tail Mode (Live Streaming) configuration in the Discover table that allows users to continuously append and view new documents in near real-time, similar to watching a live stream of logs.

**Value proposition**:

This feature is designed for users who require real-time monitoring of logs and metrics. Currently, monitoring a live stream of data requires constantly hitting refresh or using the auto-refresh feature, which inefficiently reloads the entire view, disrupting scrolling and reading flow. Tail Mode solves this by providing a lightweight, incremental update mechanism that only appends new documents to the bottom of the table, preserving your context and enabling continuous, non-disruptive, real-time data analysis.

**Expected outcome**:

- Enable a Tail Mode toggle in the table configuration menu to start live streaming.
- When active, the table will automatically append only the newest documents at a regular interval (defaulting to 10 seconds).
- The view will auto-scroll to the bottom to show the latest documents, but will pause updates if you scroll up to inspect older data.
- A visual indicator will notify you of "X new documents" when auto-scrolling is paused.
- This feature only works on relative time ranges that end at "now."