Admin Event Intelligence

Return the exact same payload as GET /v1/events/{id}/intelligence.

Used by the admin sports schedule page so the intel modal reflects what API clients actually receive, rather than a raw DB snapshot. Requires admin session auth — no API key needed.

?bookmaker= overlays a different book's live prices for legacy (points-engine) sports. For predictive-framework leagues (currently MLS) the param is ignored — assessments are priced only against the system default book, and overlaying a different book's quote would disagree with the published probability / fair_price.

Delegates to _fetch_intelligence_payload rather than re-implementing the query/formatting logic — a hand-maintained duplicate here is exactly what previously let this route hardcode the tennis/default signal schema for every sport (see _signal_schema_for's docstring) and would otherwise show a stale lumify_match_confidence view for predictive-migrated leagues (e.g. MLS) instead of lumify_assessments.