Remove OrchestrationViewerStreamer feature flag

[dagmfactory]

cleanup from https://github.com/warpdotdev/warp/pull/11838/changes#r3351528571

Description

Linked Issue

• The linked issue is labeled ready-to-spec or ready-to-implement.
• Where appropriate, screenshots or a short video of the implementation are included below (especially for user-visible or UI changes).

Testing

• I have manually tested my changes locally with ./script/run

Screenshots / Videos

Agent Mode

• Warp Agent Mode - This PR was created via Warp's AI Agent Mode

[oz-for-oss]

@dagmfactory

I'm starting a first review of this pull request.

You can view the conversation on Warp.

I completed the review and no human review was requested for this pull request.

Comment /oz-review on this pull request to retrigger a review (up to 3 times on the same pull request).

Powered by Oz

[oz-for-oss]

Overview

This PR removes FeatureFlag::OrchestrationViewerStreamer from DOGFOOD_FLAGS, so dogfood builds fall back from the SSE-driven orchestration shared-session viewer path to the legacy polling path by default.

Concerns

• The change is user-facing/behavioral for dogfood builds, but the PR description does not include manual testing notes, screenshots, or a screen recording demonstrating shared-session orchestration viewer behavior still works end to end with the flag disabled.

Verdict

Found: 0 critical, 0 important, 1 suggestion

Request changes

Comment /oz-review on this pull request to retrigger a review (up to 3 times on the same pull request).

Powered by Oz

[oz-for-oss]

💡 [SUGGESTION] This disables the streamer-backed orchestration viewer path for dogfood builds; for this user-facing behavioral change, please include screenshots or a screen recording demonstrating shared-session child updates still work end to end with the flag off.