ep: Fix e2e_latency tracking (#51852)

We were always sending zero before

Release Notes:

- N/A

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Co-authored-by: Ben Kunkle <ben@zed.dev>
7cf7dcac51Oleksiy Syvokon committed on 3/18/2026, 7:20:28 PM· committed by GitHubparentd265b32
3 files changedLine totals unavailable