db: Drizzle schemas on domain Postgres schemas, baseline migration, reorg SQL

- pgSchema tables for auth, money, house, ref, games, cs, animaldex, site, meta
  (lists excluded via schemaFilter; runtime list tables are managed by meta.*)
- drizzle/ baseline matches the reorged DB exactly (catalog diff = 0 on rehearsal)
- db/reorg: one-time SQL that moves the flat public schema (rehearsed on a prod copy)
- scripts/db-migrate.ts: migrator with --init to record the baseline and a guard
  against running the baseline on a non-empty, unrecorded database

src/lib/server/db/schema/blog.ts

@@ -1,9 +1,10 @@
-import { pgEnum, pgTable, text, unique } from 'drizzle-orm/pg-core';
+import { text, unique } from 'drizzle-orm/pg-core';
+import { siteSchema } from './schemas';
 import { id, timestamps } from './helpers';
 
-export const blogArticleStatus = pgEnum('blog_article_status', ['draft', 'published']);
+export const blogArticleStatus = siteSchema.enum('blog_article_status', ['draft', 'published']);
 
-export const blogArticles = pgTable(
+export const blogArticles = siteSchema.table(
 	'blog_articles',
 	{
 		id: id(),