Add Solana Fusion V1 Audits to README

[YamenMerhi]

Change Summary

What does this PR change?

• Adding the existing audit reports of Solana Fusion v1 in the repository to the README file in a new section according to the format used.

Related Issue/Ticket:

• N/A

Testing & Verification

How was this tested?

• Manual testing: The Links are correct and download the raw report from the repository

Risk Assessment

Risk Level:

• Low - Minor changes, no operational impact
• Medium - Moderate changes, limited impact, standard rollback available
• High - Significant changes, potential operational impact, complex rollback

Risks & Impact

• N/A