[Infrastructure] Task 12: Remove git subrepos and finalize repository structure

[leogdion]

Component/Subrepo

Infrastructure

Description

After migration is complete, remove git subrepo tracking from the umbrella repository to transition to standard package dependencies.

Task Master Reference

• Task ID: 12
• Status: pending
• Priority: medium
• Dependencies: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
• Complexity: N/A

Subtasks

• 12.1: Remove git subrepo configuration and tracking files
• 12.2: Update Package.swift to use standard package dependencies
• 12.3: Remove local source directories for subrepo packages
• 12.4: Update CI/CD workflows and scripts
• 12.5: Update documentation and README for standard package structure