Initial import of slot-ss.com (gnuboard5 + Eyoom + YoungCart) for migration

Original PHP source rsync'd from production server (slot-ss.com) on 2026-04-27.
Excluded from import:
  - data/editor (74GB user uploads), data/file (8.5GB attachments)
  - data/member_image, vendor/, db100up/, caches/sessions/logs/tmp

Includes:
  - 11,636 files, ~206MB source code (gnuboard5 v5.6.6, Eyoom builder, YoungCart 4)
  - 28 plugins (bacara, chatbot, cron, swiunApi, sns, sms5, ...)
  - Active theme: eb4_maga_005 (Eyoom magazine layout)
  - Local Docker dev stack (PHP 7.4 + Apache + Redis + MariaDB) under docker/
  - PostgreSQL migration setup (pgloader configs) under db/
  - Architecture/migration docs under docs/

Single non-source patch: src/config.php now reads G5_DOMAIN_OVERRIDE env var
so the local Docker stack can serve at http://localhost:8088 without touching
the production constant. Falls back to https://slot-ss.com when unset.

db/migrate_inspection.load

@@ -0,0 +1,37 @@
+LOAD DATABASE
+     FROM      mysql://root:rootpass@127.0.0.1:33306/inspection
+     INTO      postgresql:///slot_legacy
+
+ WITH include drop, create tables, create indexes, reset sequences,
+      workers = 4, concurrency = 1,
+      multiple readers per thread, rows per range = 50000,
+      preserve index names
+
+  SET MySQL PARAMETERS
+      net_read_timeout  = '600',
+      net_write_timeout = '600'
+
+  SET PostgreSQL PARAMETERS
+      maintenance_work_mem to '512MB',
+      work_mem to '64MB'
+
+  CAST type tinyint    to smallint drop typemod,
+       type smallint   to smallint drop typemod,
+       type mediumint  to integer  drop typemod,
+       type integer    to integer  drop typemod,
+       type int        to integer  drop typemod,
+       type bigint     to bigint   drop typemod,
+       type tinyint    when unsigned to smallint drop typemod,
+       type smallint   when unsigned to integer  drop typemod,
+       type mediumint  when unsigned to integer  drop typemod,
+       type int        when unsigned to bigint   drop typemod,
+       type bigint     when unsigned to bigint   drop typemod,
+       type float      to real      drop typemod,
+       type double     to float8    drop typemod,
+       type year       to integer   drop typemod,
+       type set        to text      drop typemod,
+       type enum       to text      drop typemod,
+       type datetime   to timestamptz drop default drop not null using zero-dates-to-null,
+       type timestamp  to timestamptz drop default drop not null using zero-dates-to-null,
+       type date       to date       drop default drop not null using zero-dates-to-null
+;

db/migrate_inspection2.load

@@ -0,0 +1,40 @@
+LOAD DATABASE
+     FROM      mysql://root:rootpass@127.0.0.1:33306/inspection2
+     INTO      postgresql:///slot
+
+ WITH include drop, create tables, create indexes, reset sequences,
+      workers = 4, concurrency = 1,
+      multiple readers per thread, rows per range = 50000,
+      preserve index names
+
+  SET MySQL PARAMETERS
+      net_read_timeout  = '600',
+      net_write_timeout = '600'
+
+  SET PostgreSQL PARAMETERS
+      maintenance_work_mem to '512MB',
+      work_mem to '64MB'
+
+  CAST type tinyint    to smallint drop typemod,
+       type smallint   to smallint drop typemod,
+       type mediumint  to integer  drop typemod,
+       type integer    to integer  drop typemod,
+       type int        to integer  drop typemod,
+       type bigint     to bigint   drop typemod,
+       type tinyint    when unsigned to smallint drop typemod,
+       type smallint   when unsigned to integer  drop typemod,
+       type mediumint  when unsigned to integer  drop typemod,
+       type int        when unsigned to bigint   drop typemod,
+       type bigint     when unsigned to bigint   drop typemod,
+       type float      to real      drop typemod,
+       type double     to float8 drop typemod,
+       type year       to integer   drop typemod,
+       type set        to text      drop typemod,
+       type enum       to text      drop typemod,
+       type datetime   to timestamptz drop default drop not null using zero-dates-to-null,
+       type timestamp  to timestamptz drop default drop not null using zero-dates-to-null,
+       type date       to date       drop default drop not null using zero-dates-to-null
+
+  BEFORE LOAD DO
+    $$ CREATE EXTENSION IF NOT EXISTS pg_trgm; $$,
+    $$ CREATE EXTENSION IF NOT EXISTS unaccent; $$;