Changes in version 0.1.0                        

Initial development release

  - Added R interface for AIGRA: Agentic Item Generation, Review, and
    Analysis.
  - Added support for connecting to a Python backend through reticulate.
  - Added PDF parsing workflow for source assessment items.
  - Added CSV and Excel item-bank templates.
  - Added CSV and Excel item-bank validation.
  - Added CSV and Excel item-bank parsing.
  - Added item generation workflows for PDF and tabular item banks.
  - Added multi-provider text model support for Gemini, OpenAI, Groq,
    and Anthropic.
  - Added multimodal diagram generation support.
  - Added multi-model image generation support for Gemini and OpenAI
    image models.
  - Added functions for quality summaries, plots, and HTML reports.
  - Added CRAN-safe bundled example item bank.
  - Added portable backend-path configuration through
    AIGRA_BACKEND_PATH.