phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

local_tests/test_mir_26_simple.hako

@@ -0,0 +1,11 @@
+// Test simple program with MIR 26 instruction set
+static box Main {
+    main() {
+        local console = new ConsoleBox()
+        local message = "Hello from MIR 26!"
+        console.log(message)
+        
+        local result = 42
+        return result
+    }
+}