fix(api): align agent task freshness metadata

[Vann-Dev]

Summary

• Include dependency metadata in Agent API task list/detail/project/create/update responses alongside note, summaryUpdatedAt, readBy, blockingReason, and updater metadata.
• Clarify Agent API OpenAPI/docs behavior for result notes, summaryUpdatedAt, and readBy omission when changing status or notes.
• Keep existing summaryUpdatedAt/read-marker helper semantics; no schema migration.

Checks

• PASS: corepack pnpm test:task-freshness
• PASS: corepack pnpm lint
• BLOCKED: corepack pnpm typecheck (prisma generate cannot resolve DATABASE_URL in this workspace)
• BLOCKED: corepack pnpm build (prisma generate cannot resolve DATABASE_URL in this workspace)

[vercel]

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Project	Deployment	Actions	Updated (UTC)
agent-bridge-web	Ready	Preview, Comment	May 14, 2026 8:27pm