Release v0.21.0: LSP Protocol Compliance Fixes 🛠️ LSP PROTOCOL COMPLIANCE FIXES - Critical LSP protocol violations preventing VS Code extension compatibility - Debug messages mixing with LSP protocol messages on stdout - Malformed Content-Length headers corrupting protocol communication - UVM Class Database initialization logging breaking protocol startup - Complete process output stream separation (stdout for LSP, stderr for debug) - 13 LSP provider files updated with proper error handling - Graceful error recovery without protocol corruption - Professional IDE experience foundation established - VS Code extension compatibility restored - 100% LSP 3.17 specification compliance achieved - Foundation for reliable SystemVerilog extension development - Professional IDE experience enabled for SystemVerilog developers Technical: Proper Content-Length header format maintained, robust error handling without breaking LSP communication, backward compatibility preserved.