Removes the heaviest vendored grammar (66 MB) along with its language
wiring and test fixtures; the supported-language count moves to 158
across README, site, and manifest. The grammar manifest additionally
records the canonical-source decisions for the five
registry-disagreement grammars and the per-directory license files
restored earlier this week.
Reproduce-first probes (215 graph-level cases) hunting node/edge-creation + LSP-pass bugs across 26 languages + web frameworks. node_creation_probe: 80/81 green (node creation is solid; only Go method-on-struct under threshold). lsp_resolution_probe: 72/83 green — RED reproductions for the cross-LSP dispatch gap (Rust/Kotlin S1 cross-file call) and constructor/static/virtual/generic resolution edge cases (C/C++/TS/Java/C#/PHP S3-S7). edge_types_probe: 29/51 green — candidate RED reproductions for HANDLES (7 web frameworks), HTTP_CALLS (5 clients), WRITES (all 5 langs), Kotlin throws/raises, Go DEFINES_METHOD/OVERRIDE (these need real-bug-vs-fixture verification). Green cases retained as regression guards throughout. No unrelated suite regressed.