Kellyvv
d5744708ba
chore: remove all MediaPipe/E4B/LiteRT legacy references
- Delete doc/HOW_TO_BUILD_E4B_IOS_APP.md (entirely obsolete)
- Podfile: remove MediaPipeTasksGenAI/C pods (not used, code uses MLX SPM)
- pod install: regenerated Podfile.lock (1 pod: Yams only)
- README.md: remove E4B from hardware requirements
- LLMEngine.swift: clean MediaPipe from comments
- MLXLocalLLMService.swift: replace E4B → E2B in inline comments
- PromptBuilder.swift: replace E4B → E2B in inline comments
- AgentEngine.swift: replace LiteRT-LM comment with MLX
- doc/iphone_agent_permissions_*.md: replace E4B → Gemma 4