Summary

• Adds a new privacy core principle wiki page under site/privacy
• Explains why financial privacy matters and how Zcash uses shielded architecture
• Contrasts transparent, shielding, deshielding, and shielded transaction flows
• Includes explicit section IDs for stable linking and practical privacy best practices

Fixes #1562

Testing

• git diff --check

Payout

• Public Zcash unified address can be provided in a follow-up comment if this bounty is accepted.