feat(llvm-py): Major breakthrough in Python LLVM backend! 🎉

✅ Print and FileBox paths now working correctly
✅ Resolver simplified by removing overly aggressive fast-path optimization
✅ Both OFF/ON in compare_harness_on_off.sh now use Python version
✅ String handle propagation issues resolved

Key changes:
- Removed instruction reordering in llvm_builder.py (respecting MIR order)
- Resolver now more conservative but reliable
- compare_harness_on_off.sh updated to use Python backend for both paths

This marks a major milestone towards Phase 15 self-hosting with Python/llvmlite!

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/backend/llvm_legacy/context.rs

@@ -0,0 +1,59 @@
+/*!
+ * LLVM Context Management - Handle LLVM context, module, and target setup (legacy)
+ */
+
+/// Mock implementation when legacy inkwell backend is disabled
+#[cfg(not(feature = "llvm-inkwell-legacy"))]
+pub struct CodegenContext {
+    _phantom: std::marker::PhantomData<()>,
+}
+
+#[cfg(not(feature = "llvm-inkwell-legacy"))]
+impl CodegenContext {
+    pub fn new(_module_name: &str) -> Result<Self, String> {
+        Ok(Self { _phantom: std::marker::PhantomData })
+    }
+}
+
+// Real implementation (compiled only when feature "llvm-inkwell-legacy" is enabled)
+#[cfg(feature = "llvm-inkwell-legacy")]
+use inkwell::context::Context;
+#[cfg(feature = "llvm-inkwell-legacy")]
+use inkwell::module::Module;
+#[cfg(feature = "llvm-inkwell-legacy")]
+use inkwell::builder::Builder;
+#[cfg(feature = "llvm-inkwell-legacy")]
+use inkwell::targets::{Target, TargetMachine, InitializationConfig};
+
+#[cfg(feature = "llvm-inkwell-legacy")]
+pub struct CodegenContext<'ctx> {
+    pub context: &'ctx Context,
+    pub module: Module<'ctx>,
+    pub builder: Builder<'ctx>,
+    pub target_machine: TargetMachine,
+}
+
+#[cfg(feature = "llvm-inkwell-legacy")]
+impl<'ctx> CodegenContext<'ctx> {
+    pub fn new(context: &'ctx Context, module_name: &str) -> Result<Self, String> {
+        Target::initialize_native(&InitializationConfig::default())
+            .map_err(|e| format!("Failed to initialize native target: {}", e))?;
+        let module = context.create_module(module_name);
+        let triple = TargetMachine::get_default_triple();
+        let target = Target::from_triple(&triple)
+            .map_err(|e| format!("Failed to get target: {}", e))?;
+        let target_machine = target
+            .create_target_machine(
+                &triple,
+                "generic",
+                "",
+                inkwell::OptimizationLevel::None,
+                inkwell::targets::RelocMode::Default,
+                inkwell::targets::CodeModel::Default,
+            )
+            .ok_or_else(|| "Failed to create target machine".to_string())?;
+        let builder = context.create_builder();
+        Ok(Self { context, module, builder, target_machine })
+    }
+}
+