fix(search): normalize non-array search responses to prevent results.map crash

[fkysly]

Summary

Fixes a crash in zai-cli search when the MCP search response is not an array.

Error observed:

results.map is not a function

What changed

In packages/zai-cli/src/commands/search.ts:

• Add normalizeSearchResults(input) helper to accept multiple response shapes:
  • []
  • { results: [] }
  • { data: [] }
  • { items: [] }
  • single result object fallback
• Map over normalized results instead of assuming results is always an array
• Keep output schema unchanged (rank, title, url, summary, source, date)

Why

Some queries (notably some non-English queries) can return a payload shape that differs from the expected array, which previously caused the command to crash. This patch makes parsing resilient and degrades gracefully (empty list instead of process failure).

Validation

• npm run build passes
• Reproduced failing query before patch
• After patch, same query no longer crashes and returns structured output (or empty array when no results)