A-LPG

Use the LPG2 lookahead parser generator: write/edit .g/.lpg grammars, run lpg-v2.3.0 or npx lpg2, generate parse tables/AST for java/cpp/rust/typescript/ go/python3/csharp/dart, link language runtimes, and validate via examples/calculator. Use when the user mentions LPG, LPG2, .g grammars, lpg-v2, parse tables, automatic_ast, %Recover, or integrating an LPG runtime.