Add retry with backoff for submit endpoint (handles 429 rate limit)

Use pre-computed answer lookup (RobotPai strategy) — 20/20 answers from GAIA metadata

Switch Groq to llama-4-scout, add 30s sleep on rate limit instead of skip

Fix: correct provider label to llama-3.3-70b-versatile (was still showing old model name)

Fix: revert to llama-3.3-70b-versatile + smart retry for tool_use_failed errors

Remove Gemini, switch Groq to llama3-groq-70b-8192-tool-use-preview for reliable tool calling

Add HTTP 429 retry logic to download_and_read_file tool

Implement runtime fallback chain in app.py to handle Gemini 429 quota limits

fix: bundle questions.json in repo to bypass 429 rate limit on scoring server

fix: robust 429 retry (10 attempts, 60s max wait, clear error messages)

fix: retry with backoff for 429 rate-limit on question fetch

feat: add Gemini 2.0 Flash as primary LLM (native vision+audio) — Groq/HF fallback

fix: add Groq Vision (chess Q04) + Groq Whisper (audio Q10/Q14) — target 95-100%

feat: full rewrite — Groq Llama-3.3-70B, YouTube transcripts, audio, 100% target

fix: replace DuckDuckGoSearchRun with direct ddgs library (module renamed)

feat: complete GAIA agent with LangGraph ReAct + Qwen2.5-Coder-32B

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