feat(kol): expose kol_profile on /api/auth/me and add seed script

server/scripts/seed_kol_profile.sql

@@ -0,0 +1,16 @@
+-- V1 helper: insert a KOL profile manually.
+-- Usage:
+--   PGPASSWORD=geo_dev psql -h localhost -U geo -d geo \
+--     -v tenant_id=1 -v user_id=5 -v display_name="'测试 KOL'" -v bio="'家具行业专家'" \
+--     -f server/scripts/seed_kol_profile.sql
+INSERT INTO kol_profiles (tenant_id, user_id, display_name, bio, market_enabled, status)
+VALUES (
+    :tenant_id::bigint,
+    :user_id::bigint,
+    :display_name,
+    :bio,
+    TRUE,
+    'active'
+)
+ON CONFLICT DO NOTHING
+RETURNING id, tenant_id, user_id, display_name, status;