Improve ALP documentation clarity and fix mathematical formulas

- Replace technical sequence diagrams with intuitive flow diagrams in architecture.md
- Add clear asset flow visualization for deposit/auto-borrow and price drop recovery
- Convert mermaid diagrams to tables and bullet points for better readability
- Fix LaTeX math formulas (health factor, utilization, reserve factor)
- Clarify MOET as primary debt token and unit of account
- Add time-weighted fairness explanation for interest accrual
- Update DeFi Actions section with link to Flow Actions documentation
- Condense verbose sections into concise paragraphs
- Fix incorrect borrowing capacity calculations in examples
- Add security architecture explanation for fund protection

Author: Felipe Cevallos