events list --expand company does not inline company names (bare companyId only)

[arcaputo3]

Problem

quartr events list --expand company does not inline company names — rows still carry only a bare companyId (observed 2026-07-25, weekly-digest pull). Every consumer ends up making a second quartr companies list --company-ids ... call and joining by hand.

This combines badly with the ticker-collision problem (#see companion issue): without names in the events output there is no way to notice that --tickers ACA gave you Crédit Agricole rows interleaved with Arcosa's.

Proposed fix

• If the API's expand=company genuinely returns the embedded company object, surface it in the CLI's table/JSON output (this may just be an output-shaping bug in internal/output/).
• If the API ignores the expand parameter for this endpoint, do the join client-side when --expand company is passed: batch the distinct companyIds into one companies list call and merge name/primaryTicker into each row.

Either way, --expand company should never be a silent no-op.