Make goto --all return every definition or an explicit continuation

[Widthdom]

Summary

goto --all still applies the default 20-row limit. A query with 63 definitions returns 20 bare-array rows with no truncation flag or cursor; adding --limit 100 returns all 63.

Audit ID: Q-03. Reproduced on v1.40.3; no exact existing issue was found.

Expected behavior

--all must remove the default result limit. If an explicit safety ceiling remains, the response must disclose total/omitted/truncated state and provide continuation.

PR scope

Keep this to goto limit normalization and response completeness.

Implementation guide for Codex 5.6 sol xhigh

• Normalize --all, explicit --limit, and defaults before query execution.
• Add a fixture with more than 20 definitions and cover array, envelope, and human output.
• If array mode cannot carry metadata, either return all requested rows or require an envelope for a bounded continuation; never silently truncate.
• Preserve deterministic ordering and exact-name/partial-family semantics.
• Add tests, run net8/net9, and add a bilingual changelog fragment.

Acceptance criteria

• The 63-definition fixture is fully returned with --all, or is explicitly and resumably bounded.
• Explicit limits still work.
• No output mode silently applies the default 20-row cap.

[Widthdom]

Work started on branch fix-issue4837.