v1.0.7

Changes

• Ported history, limits, and export utilities to Rust (src-tauri/src/history.rs, limits.rs)
• Added Tauri commands: describe_recent_file_cmd, describe_history_side_cmd, validate_input_cmd
• TypeScript now uses Rust backend for these operations on desktop with async fallbacks for web
• Internal: deleted deprecated rust-port planning docs

Testing

• All 57 Rust tests pass
• TypeScript lint and build pass