4e11cd990d
Add new command: gx lain <path.gx> [-m/--mode MODE] Features: - Execute .gx files through GX→LAIN runtime - Display fused symbol, output text, diagnostics - Configurable cognitive mode (default: analyze) - Structured error reporting Usage: gx lain sample_code.gx gx lain sample_code.gx -m synthesize All integration tests still passing (18/18).