fix(frontend): fix onboarding API key generation in SDK/tracing flows

[mmabrouk]

Summary

• Fix API key creation failures in onboarding SDK and tracing setup modals when workspace and project context are temporarily out of sync.
• Resolve context via waitForWorkspaceContext and reconcile against project metadata before calling the keys API.
• Prevent wrong-scope key creation by avoiding silent fallback to an unrelated project when a stale project id is detected.
• Keep key creation gated on both workspace_id and project_id being available.

Validation

• Ran corepack pnpm lint-fix in web/.
• Performed subagent review focused on React/web best practices and AGENTS.md guidelines; addressed flagged risks before opening this PR.

What to QA

• Onboarding -> Run evaluation from code -> click Generate API Key: key should be created successfully.
• Onboarding -> Set up tracing modal -> click Generate API Key: key should be created successfully.
• Settings -> API Keys page -> click Generate API Key: behavior remains unchanged.
• Multi-workspace/project user: verify generated key belongs to the active project/workspace context.
• Simulate stale context (e.g., quick workspace/project switching) and verify UI shows a clear refresh error instead of creating a key in the wrong scope.

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[vercel]

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Project	Deployment	Actions	Updated (UTC)
agenta-documentation	Ready	Preview, Comment	Mar 3, 2026 0:36am

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 5 additional findings.

[github-actions]

Railway Preview Environment

Preview URL	https://gateway-production-e56e.up.railway.app/w
Project	agenta-oss-pr-3893
Image tag	pr-3893-4ca3268
Status	Deployed

Updated at 2026-03-03T12:50:23.022Z

[junaway]

@ardaerzin ☝️ -- organizations, workspaces, projects temporarily out of sync (RE: earlier today)

[ardaerzin]

👍