iBilik Capital Phase 3 v5 - Bilingual Foundation
Runtime: PHP 8.0.30 / MySQL 5.7.44

Architecture:
1. One PHP codebase, not separate Chinese/English pages.
2. Fixed UI text lives in /lang/zh.php and /lang/en.php.
3. Current language is stored in PHP session and can be switched using ?lang=zh or ?lang=en.
4. Default language is APP_DEFAULT_LANGUAGE in assets/config/config.php.
5. Dynamic database-managed labels follow *_zh + *_en. English falls back to Chinese when an English value is blank.
6. Products already had name_zh/name_en in Database v1.0.
7. Import database/ibilik_capital_database_v1.3_bilingual.txt to add English fields for existing dynamic Chinese-labelled tables.

Deployment:
- Upload this package over the existing Phase 3 files.
- Keep your existing assets/config/config.php database credentials if you choose not to overwrite it.
- Import database/ibilik_capital_database_v1.3_bilingual.txt once.
- Test /login.php?lang=zh and /login.php?lang=en.
