_terminal_output json.dumps'd a node's outputs with no length limit. Node
outputs are only truncated upstream at ~100,000 chars per string, so a
report-generating workflow -- the Builder's showcase case -- could push
hundreds of KB of JSON into a dify_builder_conversation_items row, the SSE
frame, and the localizer walk on every successful build.
Cap the rendered output at 2000 chars with a visible truncation marker
before it reaches TestResultCard.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>