feat: Anchor for Dummies learning path

[L0STE]

Summary

Complete Anchor for Dummies learning path — 6 courses (28 lessons), 3 challenges, structured from fundamentals through production patterns.

Courses

• Anchor Fundamentals (8 lessons) — accounts, PDAs, instructions, constraints, CPIs, errors/events, testing/deployment
• Building with Anchor (5 lessons) — design-decision focused: state design, PDA architecture, composability, access control, account lifecycle
• Testing Anchor Programs (4 lessons) — testing strategy, TypeScript patterns, security testing, debugging
• Advanced Anchor Patterns (6 lessons) — zero-copy, raw CPIs, feature flags, compute optimization, remaining accounts, versioning/migration (includes KLend V2 instruction pattern)
• Anchor in Production (5 lessons) — deployment strategies, client SDK generation, upgrades/governance, indexing/monitoring, operational patterns

Challenges

• Anchor Vault (existing)
• Anchor Escrow (existing)
• Anchor AMM (new)
• Anchor Flash Loan (existing)

Design principles

• Design decisions over syntax tutorials — Building with Anchor teaches when and why, not how
• No content duplication — each concept taught once, cross-referenced elsewhere
• Production examples — KLend V2 instructions, real deployment patterns, operational runbooks
• Measured technical voice — Blueshift methodology throughout

Also includes

• Path configuration linking all courses + challenges in progression order
• Translations for course/challenge/path titles (all locales)
• Fixed Shiki highlighter crashes for unsupported yaml and sql language tags
• Removed deprecated Bankrun references (replaced with LiteSVM)
• Removed old standalone "Anchor for Dummies" course (replaced by the learning path). Old course URL redirects to the path.

[github-actions]

✅ Preview deployed: https://blueshift-preview-pr-356.blueshift-gg.workers.dev