v0.2.0

Added

• Multi-File Selection: Support selecting multiple .url files at once; queues all shortcuts in one click with dynamic label ("Send N shortcuts to remote-dl").
• Non-Blocking Async Dispatch: Offloads network queuing to an asynchronous worker thread in InvokeCommand, preventing Explorer UI freezing (0ms UI return).
• RAII DllLockGuard: Safely pins the COM DLL in memory during background dispatch via crate::lock() and crate::unlock().
• Universal Shortcut Encoding: Automatic detection and decoding for UTF-8, UTF-16LE (with/without BOM), and UTF-16BE files, with case-insensitive url= key parsing.
• Strict URL Scheme Validation: Enforces http:// and https:// schemes, rejecting non-standard/malicious schemes before network dispatch.
• Connection Pooling: Reuses cached reqwest client with keep-alive and DNS caching for sub-millisecond dispatch.
• Enhanced CI Release Packaging: Automates zip archive creation (rdl-shell-v*.-x64.zip) and SHA256SUMS.txt generation in GitHub Actions.