Expand Feb 5-25, 2024 entries to detailed-bullet format

Expand three weekly entries (Feb 19-25, Feb 12-18, Feb 5-11) with 1-2
sentence overviews plus 4 themed bullets per paper covering method,
setup, numerical results, and implications.

Papers expanded:
- Feb 19-25: SD3, Gemma, LLMs for Data Annotation, GRIT, LoRA+,
  Back to Basics (REINFORCE), Recurrent Memory / BABILong, Tree Search
  for LLM Planning, CoT Without Prompting, OpenCodeInterpreter
- Feb 12-18: Sora, Gemini 1.5, V-JEPA, LWM, Fractal Trainability,
  OS-Copilot/FRIDAY, TestGen-LLM, ChemLLM, Survey of LLMs, LLM Agents Hack
- Feb 5-11: Grandmaster Chess Without Search, AnyTool, Dot-Product
  Attention Phase Transition, Indirect Reasoning, ALOHA 2, More Agents,
  Self-Discover, DeepSeekMath, LLMs for Table Processing, MAS Survey

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>