ReliaLearnR 0.5

New Features

• New rbd() tutorial covering Reliability Block Diagrams and system
  reliability, including series, parallel, mixed, and k-out-of-n
  configurations, system MTTF calculation, and an introduction to Fault Tree
  Analysis — with 4 code exercises and 12 quiz questions.
• New rs() tutorial covering Repairable Systems Analysis, including
  Non-Homogeneous Poisson Process (NHPP) modeling, Mean Cumulative Function
  (MCF) estimation, and failure prediction.
• Added a companion book to supplement the interactive tutorials.

Improvements

• All tutorials deepened with more exercises and quiz questions:
  • RAM: Added an interactive failure rate (λ) slider, a Weibull bridge
    section, and 3 new exercises on series/parallel system reliability.
  • LDA: Added an Anderson-Darling goodness-of-fit section with 2 quiz
    questions and a model comparison exercise; 2 additional code exercises.
  • RS: Added 3 code exercises covering NHPP fitting, MCF plotting, and
    failure prediction.
  • RT: Added 3 code exercises covering Duane plotting, RGA, and the
    Arrhenius acceleration factor.
• NHPP tutorial updated to a MCF-first workflow for a more intuitive
  learning progression.
• Added DiagrammeR-based visual diagrams to the RBD tutorial.