{"service":"consumersignal","endpoints":{"health":"GET /health","docs":"GET /docs","chat":"POST /api/chat — body: { \"message\": \"...\" } or { \"messages\": [...] }","insightsSummary":"POST /v1/insights/summary — welcome-page negative insights","insights":"POST /v1/insights — positive + negative insights (default filters)","snapshot":"POST /v1/snapshot — welcome-page four-card snapshot","prompts":"GET /v1/prompts — curated starter questions from PROMPT_LIBRARY","foundryTest":"POST /v1/foundry/test-workflow — smoke-test Foundry workflow invoke","questionsStream":"POST /v1/questions/stream — SSE agent progress + final answer","merchantSpend":"GET /api/fact-merchant-spend-view — paginated (?limit=10000&offset=0&sort=false)"}}