ios-code-audit

Run a thorough audit of an iOS / macOS Swift codebase — bugs, dead code, duplication, Swift concurrency issues, deprecated APIs, security, performance, and SwiftUI quality — and produce a single navigable CODE_AUDIT.md report with file:line-cited findings. Use when the user asks for a "code audit", "comprehensive review", "find tech debt", "what should I clean up", or similar broad-scope assessment of a Swift project.