fix: enforce strict JSON mode and resolve unicode crash in Groq client

reduce judge context size to prevent truncation

fix: add debug logging to judge agent

fix: remove load_dotenv from agents, use system env vars for HF compatibility

multi-model Groq fallback — llama-70b → llama-4-scout → gpt-oss-120b → llama-8b

added explainer agent plain English summaries with practical takeaways

added decomposer agent splits complex multi-part claims into sub-claims

added judge agent classification, stance detection, quality scoring

judge agent in UI, evidence quality cards, study breakdown

fix: remove hardcoded paths for HuggingFace deployment

added working pipeline

added prompt for contradiction agent

correct file

setting up contradiction agent