fix(chat): render deployed file outputs inline

[icecrasher321]

Summary

• Render selected image outputs inline in deployed chats and keep other files downloadable.
• Suppress empty outputs and preserve files when the same agent also streams text.
• Negotiate structured chat outputs separately so existing stream clients keep their current behavior.

Type of Change

• Bug fix

Testing

• Focused streaming and rendering tests, including file previews, empty outputs, client compatibility, and aggregate payload limits.
• Type-check, repository lint, and CI audit suite.
• Checked image previews at desktop and mobile widths.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 14, 2026 10:53pm UTC

[icecrasher321]

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[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge with both previous findings resolved and no new actionable defects identified.

Summary

This PR adds negotiated structured outputs for deployed chat streams, extracts returned files into explicitly projected client attachments, and renders image outputs inline while preserving downloads and existing clients’ text-stream behavior.

• Adds a separate chat-outputs-v1 stream capability.
• Emits selected non-text values as typed output frames.
• Extracts file attachments while retaining other structured output fields.
• Renders image previews from inline bytes or safe file URLs.
• Suppresses empty assistant rows and file-only copy actions.
• Adds focused protocol, streaming, projection, and rendering regressions.

Diagram

sequenceDiagram
  participant C as Deployed Chat Client
  participant S as Streaming Response
  participant E as Workflow Executor
  participant UI as Chat Message UI

  C->>S: Request agent-events-v1, chat-outputs-v1
  S->>E: Execute deployed workflow
  E-->>S: Live answer chunks
  S-->>C: chunk frames
  E-->>S: Selected structured output
  S-->>C: output frame
  C->>C: Separate files from visible content
  C->>UI: Render text and attachments
  UI->>UI: Preview images inline
  S-->>C: final frame

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[icecrasher321]

@greptile

[icecrasher321]

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