Complete overhaul of the automation AI engine

The AI automation builder has undergone a major overhaul, featuring real-time streaming of generation steps, persistent session memory, and support for combined natural language queries. Two modes are now available: Build Mode for creating or editing automations, and Chat Mode for querying the knowledge base with real-time responses and context-aware suggestions. The interface retains history even after closing, offers suggestions tailored to the web context, and guarantees a fully white-label output with no mention of the platform.