nx_lang_lint.nx

nx_lang_lint.nx -- the NISHI-LANG SELF-IMPROVEMENT linter (operator: identify AND address the language gaps so nx becomes an ever-improving RSI loop -- from the bits up). This is the IDENTIFY half: scan a .nx source for the KNOWN landmine patterns (the landmines.tsv ergonomic class) and flag them BEFORE they reach nxasm and turn into silent rc=6 / miscompiles. A caught-at-lint landmine is a language defect made visible -- the first step to retiring it as a real feature (X-LANG-004). Patterns detected (each a documented landmine): L1 ANDOR "&&" or "||" -- unsupported operators (must be nested ifs) L2 EMPTYSTR "" empty-string lit -- the no-empty-string-literal landmine L3 BIGARGS func with >6 params -- the <=6-args calling-convention landmine L4 FNHEAVY >=18 calls "name(" in one func -- approaching the 21-call rc=6 cliff Durable: LINT-HIT rows + LINT verdict -> knowledge/status/lang_lint.log. Exit 0 = clean; 1 = landmines found (the source needs the workaround OR the lang needs the feature). argv[1]=source path. license_tier: ORIGINAL