fix: rewrite swift test commands

[zerone0x]

Summary

• add swift test to the hook rewrite registry alongside swift build
• route rewritten Swift test commands through rtk swift
• add registry coverage for Swift test classification and rewrite behavior

Test plan

• cargo test swift_test
• cargo test

Fixes #765

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Generated by Orbit 🛸

[pszymkowiak]

[w] wshm · Automated triage by AI

📊 Automated PR Analysis

🐛 Type	bug-fix
🟢 Risk	low

Summary

Adds support for swift test commands in the hook rewrite registry, routing them through rtk swift alongside the existing swift build support. The change updates the pattern matching regex and adds subcommand-specific savings configuration for test commands.

Review Checklist

• Tests present
• Breaking change
• Docs updated

Linked issues: #765

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Analyzed automatically by wshm · This is an automated analysis, not a human review.

[CLAassistant]

All committers have signed the CLA.