docs/ci: selfhost bootstrap/exe-first workflows; add ny-llvmc scaffolding + JSON v0 schema validation; plan: unify to Nyash ABI v2 (no backwards compat)

src/mir/optimizer_passes/mod.rs

@@ -3,3 +3,5 @@ pub mod diagnostics;
 pub mod intrinsics;
 pub mod normalize;
 pub mod reorder;
+pub mod normalize_core13_pure;
+pub mod normalize_legacy_all;