[AI] Fix Typos

[KCarretto]

Fix typos and formatting across the repository

• Use codespell to find and fix spelling mistakes
• Apply sed scripts to correct typo strings in Go, Rust, and YAML data
• Propagate variable name fixes (e.g. requestor -> requester) in GraphQL test cases
• Run go fmt and cargo fmt on affected modules

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PR created automatically by Jules for task 16674568566404353770 started by @KCarretto

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