feat(deploy): production deployment setup and fixes

- Debian-based api image (bookworm-slim), docker/debian mirrors, prisma
  binaryTargets for openssl 3.0
- nginx: admin SPA under /admin, TLS via acme.sh (ZeroSSL) + auto-renewal
  cron, http->https redirect
- prisma: add origin_goods.delisted migration, sync missing schema
  (good_image/tag_font_color/good_tags), fix users.createdAt Timestamptz
- api: CORS wildcard reflection, helmet CORP cross-origin, price
  backfill in persistProductDetail, categoryIcon ancestor fallback,
  mediaByColor per-color gallery in public goods detail
- admin: /admin base path (vite + router)
- import-data.mjs: udt_name casting, serial sequence advance fix

.agents/skills/supabase-postgres-best-practices/references/monitor-pg-stat-statements.md

@@ -1,55 +0,0 @@
----
-title: Enable pg_stat_statements for Query Analysis
-impact: LOW-MEDIUM
-impactDescription: Identify top resource-consuming queries
-tags: pg-stat-statements, monitoring, statistics, performance
----
-
-## Enable pg_stat_statements for Query Analysis
-
-pg_stat_statements tracks execution statistics for all queries, helping identify slow and frequent queries.
-
-**Incorrect (no visibility into query patterns):**
-
-```sql
--- Database is slow, but which queries are the problem?
--- No way to know without pg_stat_statements
-```
-
-**Correct (enable and query pg_stat_statements):**
-
-```sql
--- Enable the extension
-create extension if not exists pg_stat_statements;
-
--- Find slowest queries by total time
-select
-  calls,
-  round(total_exec_time::numeric, 2) as total_time_ms,
-  round(mean_exec_time::numeric, 2) as mean_time_ms,
-  query
-from pg_stat_statements
-order by total_exec_time desc
-limit 10;
-
--- Find most frequent queries
-select calls, query
-from pg_stat_statements
-order by calls desc
-limit 10;
-
--- Reset statistics after optimization
-select pg_stat_statements_reset();
-```
-
-Key metrics to monitor:
-
-```sql
--- Queries with high mean time (candidates for optimization)
-select query, mean_exec_time, calls
-from pg_stat_statements
-where mean_exec_time > 100  -- > 100ms average
-order by mean_exec_time desc;
-```
-
-Reference: [pg_stat_statements](https://supabase.com/docs/guides/database/extensions/pg_stat_statements)