[Console vNext][2] Refine Run Detail and Needs you intervention flow

[AbigailDeng]

Parent: #3106

Backend dependencies: #3112, #3113

Target branch: codex/console-vnext

Goal

Make Runs that require a person easy to find, understand, and resolve without leaving the Team/Run context.

Scope

• Refine Needs you status and reason presentation using structured backend semantics when [Backend][Console vNext] Provide global Activity queries and authoritative attention semantics #3112 is available.
• Promote approval, input, suspended, retryable failure, and intervention states in Activity and Run Detail.
• Reuse existing run console, resume, signal, stop, and approval contracts.
• Show the current blocking step, request, deadline/timeout where available, and allowed action.
• Preserve navigation back to the originating Team Activity filter.
• Handle stale/resolved requests and command accepted/completed states.

Acceptance criteria

• No substring-based status inference remains once [Backend][Console vNext] Provide global Activity queries and authoritative attention semantics #3112 supplies structured attention reasons.
• Each intervention state has a clear primary action and non-destructive fallback.
• Duplicate submissions are prevented while a command is pending.
• Resolved/stale intervention links fail safely and refresh the run.
• Keyboard, mobile, loading, partial/error, and direct-link behavior are tested.
• Large-run detail does not require downloading an unbounded graph; use [Backend][Console vNext] Provide trustworthy operational metrics and large-run topology #3113 where applicable.