Docs: Add Docs for sui_ql

[ceeriil]

We need to add proper documentation for the suiql (Sui Query Language) feature. This should include syntax, supported query types, real examples, and how it differs from eql.

Acceptance Criteria:

• Overview of what suiql is and how it fits into Sandworm
• Syntax reference (including any Sui-specific behaviors)
• At least 2–3 real query examples
• Link to live IDE or query playground (if live)
• Clarify any differences from eql or other query languages
• Usage notes for devs and analysts

[Ifechukwudaniel]

Nice