fix command-center RPCs against prod schema and setof call

Migration 0040 was written against an assumed schema and referenced
columns that don't exist in the prod orders table:
  - orders.created_at  → use orders.placed_at
  - orders.subtotal    → use orders.total_cents / 100
  - stops.date regex   → column is already DATE, not TEXT, drop the
                         ~ '^\d{4}-...$' check

Migration 0041 fixes both broken functions in place via
CREATE OR REPLACE FUNCTION.

The action layer at src/actions/platform/command-center.ts used
SELECT fn() AS "fn" for all platform RPCs, but two of the three
return TABLE(...) (setof) — the correct syntax is SELECT * FROM fn().
The platformRPC<T> helper now takes a kind: 'scalar' | 'setof' flag
and emits the right SQL.

Verified on prod:
  METRICS:    { orders_today:0, active_brands:1, active_routes:538, ... }
  BRAND_HEALTH: 1 row (Tuxedo Corn), 538 active_stops, 0 failed, healthy schema
  ACTIVITY:   0 rows (operational_events has no brand_id in payload, no error)

db/migrations/0041_command_center_schema_fix.sql

@@ -0,0 +1,147 @@
+-- Migration 0041: Fix command-center RPCs against actual prod schema
+--
+-- Migration 0040 was written against an assumed schema and references columns
+-- that don't exist in the prod `orders` table:
+--   - `orders.created_at` does not exist  → use `orders.placed_at`
+--   - `orders.subtotal` does not exist     → use `orders.total_cents / 100`
+--   - `stops.date` is already DATE, not TEXT → drop the `~ '^\d{4}-...' ` regex
+--
+-- All three functions are fixed in place via CREATE OR REPLACE FUNCTION.
+-- The action layer (src/actions/platform/command-center.ts) is updated
+-- separately to use `SELECT * FROM fn()` for the two setof-returning functions.
+--
+-- Reference (prod schema as of 2026-06-17):
+--   orders:        id, brand_id, customer_id, stop_id, total_cents INT,
+--                  status TEXT, fulfillment TEXT, customer_*,
+--                  idempotency_key, notes, placed_at TIMESTAMPTZ, updated_at
+--   stops:         id, brand_id, name, location, address, city, state, zip,
+--                  date DATE, time, cutoff_date, status, is_public, notes,
+--                  created_at, updated_at
+--   operational_events: id, brand_id, event_type, entity_type, entity_id,
+--                  actor_type, actor_id, source, payload JSONB, created_at
+--   brands:        (assumed present per CLAUDE.md)
+
+-- ── Platform-wide metrics ──────────────────────────────────────────────────
+CREATE OR REPLACE FUNCTION get_platform_command_center_metrics()
+RETURNS JSONB
+LANGUAGE plpgsql SECURITY DEFINER
+AS $$
+DECLARE
+  result JSONB;
+BEGIN
+  result := jsonb_build_object(
+    'active_brands', (
+      SELECT COUNT(*) FROM brands WHERE slug IN ('tuxedo', 'indian-river-direct')
+    ),
+    'orders_today', (
+      SELECT COUNT(*) FROM orders
+      WHERE DATE(placed_at) = CURRENT_DATE
+    ),
+    'revenue_today', (
+      SELECT COALESCE(SUM(total_cents), 0)::NUMERIC / 100
+      FROM orders
+      WHERE DATE(placed_at) = CURRENT_DATE
+      AND status NOT IN ('cancelled', 'refunded')
+    ),
+    'active_routes', (
+      SELECT COUNT(DISTINCT s.id)
+      FROM stops s
+      WHERE s.date >= CURRENT_DATE
+      AND s.status = 'active'
+    ),
+    'failed_orders_today', (
+      SELECT COUNT(*)
+      FROM orders
+      WHERE DATE(placed_at) = CURRENT_DATE
+      AND status IN ('payment_failed', 'failed')
+    ),
+    'pending_orders_today', (
+      SELECT COUNT(*)
+      FROM orders
+      WHERE DATE(placed_at) = CURRENT_DATE
+      AND status = 'pending'
+    )
+  );
+
+  RETURN result;
+END;
+$$;
+
+-- ── Per-brand health snapshot ──────────────────────────────────────────────
+CREATE OR REPLACE FUNCTION get_brand_health_snapshot()
+RETURNS TABLE (
+  brand_id UUID,
+  brand_name TEXT,
+  brand_slug TEXT,
+  plan_tier TEXT,
+  orders_today INT,
+  revenue_today NUMERIC,
+  active_stops INT,
+  failed_orders INT,
+  pending_orders INT,
+  last_activity TIMESTAMPTZ,
+  open_pain_items INT,
+  health_status TEXT
+)
+LANGUAGE plpgsql SECURITY DEFINER
+AS $$
+BEGIN
+  RETURN QUERY
+  WITH bm AS (
+    SELECT
+      b.id AS bid,
+      b.name AS bname,
+      b.slug AS bslug,
+      COUNT(DISTINCT o.id) FILTER (WHERE DATE(o.placed_at) = CURRENT_DATE) AS ords_today,
+      (COALESCE(SUM(o.total_cents) FILTER (
+        WHERE DATE(o.placed_at) = CURRENT_DATE
+        AND o.status NOT IN ('cancelled', 'refunded')
+      ), 0)::NUMERIC / 100) AS rev_today,
+      COUNT(DISTINCT s.id) FILTER (
+        WHERE s.date >= CURRENT_DATE AND s.status = 'active'
+      ) AS act_stops,
+      COUNT(DISTINCT o.id) FILTER (WHERE DATE(o.placed_at) = CURRENT_DATE AND o.status IN ('payment_failed', 'failed')) AS fail_ords,
+      COUNT(DISTINCT o.id) FILTER (WHERE DATE(o.placed_at) = CURRENT_DATE AND o.status = 'pending') AS pend_ords,
+      MAX(oe.created_at) AS last_act
+    FROM brands b
+    LEFT JOIN orders o ON o.brand_id = b.id
+    LEFT JOIN stops s ON s.brand_id = b.id
+    LEFT JOIN operational_events oe
+      ON oe.payload->>'brand_id' = b.id::TEXT
+      AND oe.payload->>'brand_id' ~ '^[0-9a-fA-F-]{36}$'
+    WHERE b.slug IN ('tuxedo', 'indian-river-direct')
+    GROUP BY b.id, b.name, b.slug
+  ),
+  pc AS (
+    SELECT f.brand_id AS pc_bid, COUNT(*) AS open_cnt
+    FROM founder_pain_log f
+    WHERE f.status = 'open'
+    GROUP BY f.brand_id
+  )
+  SELECT
+    bm.bid,
+    bm.bname,
+    bm.bslug,
+    NULL::TEXT,
+    COALESCE(bm.ords_today, 0)::INT,
+    COALESCE(bm.rev_today, 0)::NUMERIC,
+    COALESCE(bm.act_stops, 0)::INT,
+    COALESCE(bm.fail_ords, 0)::INT,
+    COALESCE(bm.pend_ords, 0)::INT,
+    bm.last_act,
+    COALESCE(pc.open_cnt, 0)::INT,
+    CASE
+      WHEN COALESCE(bm.fail_ords, 0) > 0 THEN 'critical'
+      WHEN COALESCE(bm.pend_ords, 0) > 5 THEN 'warning'
+      WHEN COALESCE(pc.open_cnt, 0) > 0 THEN 'warning'
+      WHEN bm.last_act IS NULL OR bm.last_act < (NOW() - INTERVAL '24 hours') THEN 'warning'
+      ELSE 'healthy'
+    END
+  FROM bm
+  LEFT JOIN pc ON pc.pc_bid = bm.bid;
+END;
+$$;
+
+-- get_platform_activity_feed from 0040 is already correct against the prod
+-- schema (operational_events.payload->>'brand_id' is a text→UUID cast that
+-- nulls out on missing keys). No body change required.