Make demo deployable on Hugging Face Spaces + add local/Groq/demo onboarding

feat: add groq_cloud profile with Groq LLM + Pollinations image generation (fully free, no credits)

feat: add profiles.py control panel and Gemini backend for prompt expansion and image generation

fix: restore FLUX.1-schnell and Qwen2.5 LLM configurations in local config

fix: update to supported models (zephyr-7b-beta and stable-diffusion-v1-5)

fix: update model IDs to avoid credit depletion and chat model errors

feat: initial release of Multiverse AI Studio