restore(lang): full lang tree from ff3ef452 (306 files) — compiler, vm, shared, runner, c-abi, etc.\n\n- Restores lang/ directory (files≈306, dirs≈64) as per historical branch with selfhost sources\n- Keeps our recent parser index changes in compiler/* (merged clean by checkout)\n- Unblocks selfhost development and documentation references

lang/src/llvm_ir/hako_module.toml

@@ -0,0 +1,14 @@
+[module]
+name = "selfhost.llvm.ir"
+description = "LLVM Script Builder (IR only; opt-in)"
+
+[exports]
+boxes = [
+  "LLVMModuleBox",
+  "LLVMFunctionBox",
+  "LLVMBuilderBox",
+  "LLVMTypesBox",
+  "LLVMEmitBox",
+  "LLVMV0BuilderBox",
+  "LLVMAotFacadeBox",
+]