formatResultContent recognized structured tool output shaped like
`[{ type: "text", text: "..." }]` but read only `parsedContent[0].text`.
When a tool result split its output across several text blocks, the step
summary showed the first and silently dropped the rest, so extra findings,
file paths and follow-up instructions vanished from the rendered
Claude Code Report while remaining in the execution transcript.
Collect the text from every block instead of just the first. Blocks of other
types, such as images, are skipped rather than stringified into the summary.
Fixes#1572
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>