refactor: rename MokoJoomOpenGraph -> MokoSuiteOpenGraph; require Joomla 6+

Product rename (display name / docs / comments / language strings only —
technical element names mokoog/com_mokoog/MokoOG namespace unchanged):
- Replace "MokoJoom" -> "MokoSuite" across 55 files
- Fixes the update-site license lookup in script.php, which matched the
  old "%MokoJoomOpenGraph%" name and would never find a "MokoSuite" site

Joomla 6 compatibility:
- script.php: minimumJoomla 4.0.0 -> 6.0.0, minimumPhp 8.1.0 -> 8.2.0,
  and actually enforce the Joomla floor in preflight() (was PHP-only)
- Add PKG_MOKOOG_JOOMLA_VERSION_ERROR language strings (en-GB, en-US)
- openapi.yaml + README state Joomla 6.0+ requirement
- Audit confirmed the codebase already uses only Joomla-6-supported APIs

source/packages/com_mokoog/sql/install.mysql.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph - Database Schema
+-- MokoSuiteOpenGraph - Database Schema
 -- Copyright (C) 2026 Moko Consulting. All rights reserved.
 -- License: GPL-3.0-or-later
 --

source/packages/com_mokoog/sql/uninstall.mysql.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph - Uninstall
+-- MokoSuiteOpenGraph - Uninstall
 --
 
 DROP TABLE IF EXISTS `#__mokoog_tags`;

source/packages/com_mokoog/sql/updates/mysql/01.01.00.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph 01.01.00 — Add SEO meta management columns
+-- MokoSuiteOpenGraph 01.01.00 — Add SEO meta management columns
 --
 
 ALTER TABLE `#__mokoog_tags`

source/packages/com_mokoog/sql/updates/mysql/01.02.00.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph 01.02.00 — Add multilingual OG tag support
+-- MokoSuiteOpenGraph 01.02.00 — Add multilingual OG tag support
 --
 
 ALTER TABLE `#__mokoog_tags`

source/packages/com_mokoog/sql/updates/mysql/01.03.00.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph 01.03.00 - Add og_video column
+-- MokoSuiteOpenGraph 01.03.00 - Add og_video column
 --
 
 ALTER TABLE `#__mokoog_tags` ADD COLUMN `og_video` VARCHAR(512) NOT NULL DEFAULT '' AFTER `og_type`;

source/packages/com_mokoog/sql/updates/mysql/01.04.00.sql

@@ -1,5 +1,5 @@
 --
--- MokoJoomOpenGraph 01.04.00 - Add event_data and recipe_data columns
+-- MokoSuiteOpenGraph 01.04.00 - Add event_data and recipe_data columns
 --
 
 ALTER TABLE `#__mokoog_tags` ADD COLUMN `event_data` TEXT NULL AFTER `og_video`;