Research: compile canonical literature & annotated bibliography

[wilcompute]

Compile canonical literature and short summaries describing connections to this project:

• E8 in physics and mathematics (Lisi, Garibaldi reviews).
• Bootstrap methods and computational bootstrap.
• Computational algebraic geometry in string theory / E8 in heterotic vacua.
• Triality and relations (relevant to W33 triads).

Goal: produce a short annotated bibliography in paper/reading_list.md and add BibTeX entries.