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

examples/aot_py_math_sqrt_minimal.hako

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+// Minimal math.sqrt example with console output
+static box Main {
+  main() {
+    local py, code, result, console, msg
+    
+    // Create console
+    console = new ConsoleBox()
+    
+    // Create Python runtime
+    py = new PyRuntimeBox()
+    
+    // Since import/getattr not available, use eval approach
+    code = new StringBox("__import__('math').sqrt(16)")
+    result = py.eval(code)
+    
+    // Log result
+    msg = new StringBox("sqrt(16) = ")
+    console.log(msg)
+    
+    return result
+  }
+}