Step 231: Add session anonymizer

editor/tests/step231_test.cpp

@@ -0,0 +1,46 @@
+// Step 231: Session anonymizer.
+#include "SessionAnonymizer.h"
+#include <iostream>
+
+static void expect(bool cond, const std::string& name, int& passed, int& failed) {
+    if (cond) {
+        std::cout << "Test " << (passed + failed + 1) << " PASS: " << name << "\n";
+        ++passed;
+    } else {
+        std::cout << "Test " << (passed + failed + 1) << " FAIL: " << name << "\n";
+        ++failed;
+    }
+}
+
+int main() {
+    int passed = 0;
+    int failed = 0;
+
+    SessionAnonymizer anon;
+    anon.setSeed(123);
+    anon.setLevel(SessionAnonymizer::Level::Medium);
+
+    json input = {
+        {"path", "C:/Users/Bob/project/main.py"},
+        {"source", "def foo(x):\n    # comment\n    return bar(x)\n"},
+        {"apiKey", "SECRET-123"}
+    };
+
+    json out1 = anon.anonymize(input);
+    json out2 = anon.anonymize(input);
+
+    std::string path = out1.value("path", "");
+    std::string src = out1.value("source", "");
+
+    expect(path.find("/project/src/") == 0, "path anonymized", passed, failed);
+    expect(path.find(".py") != std::string::npos, "path extension preserved", passed, failed);
+    expect(src.find("comment") == std::string::npos, "comments stripped", passed, failed);
+    expect(src.find("foo") == std::string::npos, "identifiers anonymized", passed, failed);
+    expect(src.find("bar") == std::string::npos, "identifiers anonymized 2", passed, failed);
+    expect(out1.value("apiKey", "") == "<redacted>", "secrets redacted", passed, failed);
+    expect(out1.dump() == out2.dump(), "deterministic output", passed, failed);
+
+    std::cout << "\n=== Step 231 Results: " << passed << " passed, "
+              << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}