Expert PHP Developer Needed: Core PHP 8.3 Architecture Unification (Strict Single Codebase & CSS Logical Properties)

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PHP, Mobile App Development, CSS, Software Architecture, HTML5, Database Administration, Web Animation, Domain Research · ### Project Description: B2B corporate established platform built on Custom Core PHP 8.3. (Important Note: The upgraded PHP 8.3 logic and modern features like WhatsApp integration exist ONLY within our current Arabic files).

Needed an expert Backend/Frontend developer to take this updated Arabic codebase as the ONLY root engine and refactor it into a strict Single Codebase (Zero Code Duplication). This unified codebase must dynamically serve two distinct domains (egyptmart.com for Arabic/RTL and arab-mart.com for English/LTR).

### Key Architectural Requirements: 1. Dynamic Routing & Core Unification: Implement a centralized routing mechanism to detect the incoming domain and dynamically switch languages, database configurations, and UI directions using a SINGLE set of core files.

2. Dynamic Database Mapping: The platform utilizes parallel tables for different languages (e.g., 'business_profile' for Arabic and 'business_profile_arabyos' for English). You must implement a centralized SQL rewrite layer/mapping logic in the configuration so that all existing database queries automatically route to the correct table based on the active domain without duplicating the query paths acr