llmswap v5.5.8

llmswap v5.5.8

Added

• Introduced LLMSwap Arena, a simplified web UI for comparing model answers, speed, ranking, and token usage.
• Added README screenshots for the Arena prompt/model selection and results/together-view workflows.

Changed

• Reworked the web UI around selected models, prompt, run summary, ranking, token math, together view, and full ranked responses.
• Removed stale picker pricing and primary cost display from the web UI.
• Updated README, metadata, examples, and fallback web template references to current model names.

Fixed

• Removed deprecated model names from web UI fallback examples and cost estimator defaults.
• Added Sarvam provider detection and setup messaging in the web comparison layer.