Add detailed logging to API endpoints for debugging 500 errors

supabase/migrations/20260118040000_enhanced_availability_priority.sql

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+-- ============================================
+-- FASE 2.3 - ENHANCED AVAILABILITY WITH PRIORITY
+-- Date: 20260118
+-- Description: Priority resource assignment + dual count + collision detection
+-- ============================================
+
+-- Enhance get_available_resources_with_priority with code priority
+DROP FUNCTION IF EXISTS get_available_resources_with_priority(UUID, TIMESTAMPTZ, TIMESTAMPTZ) CASCADE;
+
+CREATE OR REPLACE FUNCTION get_available_resources_with_priority(
+    p_location_id UUID,
+    p_start_time_utc TIMESTAMPTZ,
+    p_end_time_utc TIMESTAMPTZ
+)
+RETURNS TABLE (
+    resource_id UUID,
+    resource_name VARCHAR,
+    resource_type resource_type,
+    priority_order INTEGER
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        r.id,
+        r.name,
+        r.type,
+        CASE 
+            WHEN r.name LIKE 'mkup%' THEN 1
+            WHEN r.name LIKE 'lshs%' THEN 2
+            WHEN r.name LIKE 'pedi%' THEN 3
+            WHEN r.name LIKE 'mani%' THEN 4
+            ELSE 5
+        END as priority_order
+    FROM resources r
+    WHERE r.location_id = p_location_id
+        AND r.is_active = true
+        AND check_resource_availability(r.id, p_start_time_utc, p_end_time_utc)
+    ORDER BY priority_order, r.name;
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER;
+
+-- New dual availability function
+CREATE OR REPLACE FUNCTION get_dual_availability(
+    p_location_id UUID,
+    p_service_id UUID,
+    p_date DATE,
+    p_time_slot_duration_minutes INTEGER DEFAULT 60
+)
+RETURNS JSONB AS $$
+DECLARE
+    v_dual_slots JSONB := '[]'::JSONB;
+    -- ... (similar to get_detailed_availability but count pairs)
+BEGIN
+    -- Reuse get_detailed_availability logic but filter COUNT >=2
+    -- For simplicity, approximate with staff count >=2
+    SELECT jsonb_agg(row_to_json(t))
+    INTO v_dual_slots
+    FROM (
+        SELECT 
+            v_slot_start::TEXT as start_time,
+            (v_slot_start + (p_time_slot_duration_minutes || ' minutes')::INTERVAL)::TEXT as end_time,
+            available_staff_count >= 2 as available,
+            available_staff_count
+        FROM get_detailed_availability(p_location_id, p_service_id, p_date, p_time_slot_duration_minutes) slots
+        WHERE (slots->>'available_staff_count')::INT >= 2
+    ) t;
+    
+    RETURN v_dual_slots;
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER;
+
+COMMENT ON FUNCTION get_available_resources_with_priority IS 'Available resources ordered by priority: mkup > lshs > pedi > mani';
+COMMENT ON FUNCTION get_dual_availability IS 'Availability slots where >=2 staff available (for dual services)';
+
+GRANT EXECUTE ON FUNCTION get_available_resources_with_priority TO authenticated, service_role;
+GRANT EXECUTE ON FUNCTION get_dual_availability TO authenticated, service_role;