Fixes path to qt6-after tests

.github/prompts/combined-migration-compact.prompt.md

@@ -66,7 +66,7 @@ Migrate the legacy Qt5/C++11 desktop application to Qt6/C++23, preserve behavior
 
 ## Tests
 - For every code change inside a method, add at least three tests covering the changed behavior.
-- Place generated tests in `${PROJECT_DIR}/qt6-after/qt6-migrated-benchmark/tests`.
+- Place generated tests in `${PROJECT_DIR}/qt6-after/qt6-migrated-legatus/tests`.
 - Use policy-compatible test filenames such as:
   - `test_<name>.cpp`
   - `<name>_test.cpp`
@@ -87,7 +87,7 @@ Use `lifemaps/ci-cpp:latest` as the authoritative environment. Do not substitute
 
 ### Recommended commands
 - Configure:
-  `cmake -S ${PROJECT_DIR}/qt6-after/qt6-migrated-benchmark -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug`
+  `cmake -S ${PROJECT_DIR}/qt6-after/qt6-migrated-legatus -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug`
 - Build:
   `cmake --build build --parallel`
 - Test:
@@ -130,7 +130,7 @@ Project failures:
 ## Execution Plan
 1. Inspect `${PROJECT_DIR}` and the target tree.
 2. Identify Qt5 and legacy C++ constructs to migrate.
-3. Migrate incrementally in `qt6-after/qt6-migrated-benchmark`.
+3. Migrate incrementally in `qt6-after/qt6-migrated-legatus`.
 4. Add/update tests with each behavior-relevant change.
 5. Update CMake/test registration.
 6. Validate in Docker.
@@ -150,7 +150,7 @@ Also provide a concise changed-files summary.
 
 ## Completion Criteria
 Success requires:
-- migrated project exists under `${PROJECT_DIR}/qt6-after/qt6-migrated-benchmark`
+- migrated project exists under `${PROJECT_DIR}/qt6-after/qt6-migrated-legatus`
 - configure succeeds in Docker
 - build succeeds in Docker
 - tests succeed in Docker