chore: resolve copilot comments

[Ayaz-Microsoft]

Purpose

Addressed the copilot comments which were on dev-v4 to main PR.

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

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Other Information

[github-actions]

Coverage Report •

File	Stmts	Miss	Cover	Missing
v4/orchestration
orchestration_manager.py	264	31	88%	266–267, 328–330, 334, 340, 352–354, 358, 364, 404–405, 423, 483–484, 491, 493–497, 499–502, 504, 554, 559, 563
TOTAL	3055	381	87%

Tests	Skipped	Failures	Errors	Time
886	5 💤	0 ❌	0 🔥	7.844s ⏱️

[Copilot]

Pull request overview

This PR addresses prior Copilot review feedback by aligning backend PlanStatus usage with the persisted Agent Framework models, adding regression tests around orchestration failure handling, and tightening the UI behavior on plan failure.

Changes:

• Update backend orchestration to import PlanStatus from common.models.messages_af and set failed status using the lowercase enum member.
• Add backend tests verifying plan status updates on orchestration exceptions (including DB-update failure behavior and no-plan-id behavior).
• Disable chat input on WebSocket error/failure paths in the Plan UI; minor wording tweak in an infra script log line.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
src/tests/backend/v4/orchestration/test_orchestration_manager.py	Updates mocks for messages_af.PlanStatus and adds new orchestration failure-path tests.
src/backend/v4/orchestration/orchestration_manager.py	Switches PlanStatus import source and updates failed-status assignment; adjusts error payload timestamp source.
src/App/src/hooks/usePlanWebSocket.tsx	Disables chat input when the plan fails via FINAL_RESULT_MESSAGE error status or ERROR_MESSAGE.
infra/scripts/assign_azure_ai_user_role.sh	Updates an echo message to refer to “Foundry resource id”.

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[github-actions]

🎉 This PR is included in version 4.2.3 🎉

The release is available on GitHub release

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