fix: align cloud model lists across UI

[Pakchoioioi]

Summary

• Align ChatBox dropdown and AddWorker model lists with Settings (Models.tsx) as source of truth
• Add missing gemini-3.5-flash to ChatBox dropdown and SUPPORTED_CLOUD_MODEL_TYPES
• Replace outdated AddWorker models (gpt-4.1-mini, gpt-4.1, gpt-5, gpt-5.1, gpt-5.2, minimax_m2_5) with current Settings list
• Fix AddWorker GPT model platform from openai to azure
• Add missing models to AddWorker: gpt-5.5, claude-opus-4.7, deepseek-v4-pro, minimax_m2_7

Test plan

• Verify ChatBox model dropdown matches Settings model list
• Verify AddWorker eigent model dropdown matches Settings model list
• Confirm gemini-3.5-flash persists after app reload (SUPPORTED validation)

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