Wave 8: tech-debt audits, core unit tests, CLI pipe input (W11.1-W11.7)

- W11.1 context_plugin audit (architect-huang): 3 findings on ABI exception
  safety, strdup null checks, dead g_max_tokens variable. Rating: B.
- W11.2 config audit (engineer-chen): identified 74-line TOML parser
  duplication between config_plugin and config_store, dual-store data
  isolation, dangling c_str() risk. Rating: C.
- W11.3 event_bus + service_registry unit tests (qa-liu): 12 cases total,
  ctest coverage 2 -> 4 targets, 100% pass.
- W11.4 CLI stdin pipe mode (engineer-zhao): isatty detection, single-shot
  inference path with exit codes 0/1/2/3.
- W11.6 scripts/refresh_status.py (engineer-li): 431-line generator that
  scans 16 profile.md + 5 group.md to regenerate STATUS.md.
- W11.7 destructive testing (qa-xu): 10 input scenarios PASS, found bin
  copy mismatch (BUG-1) plus 3 minor UX bugs for follow-up.

Verified: cmake build 0 error, ctest 4/4 pass.

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

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

tests/CMakeLists.txt

@@ -34,3 +34,41 @@ target_link_libraries(dstalk-host-api-test
 )
 
 add_test(NAME dstalk-host-api-test COMMAND dstalk-host-api-test)
+
+# ============================================================
+# dstalk-event-bus-test — EventBus 单元测试
+# ============================================================
+
+add_executable(dstalk-event-bus-test
+    event_bus_test.cpp
+    ${CMAKE_SOURCE_DIR}/dstalk-core/src/event_bus.cpp
+)
+
+target_include_directories(dstalk-event-bus-test
+    PRIVATE ${CMAKE_SOURCE_DIR}/dstalk-core/src
+)
+
+target_compile_features(dstalk-event-bus-test
+    PRIVATE cxx_std_17
+)
+
+add_test(NAME dstalk-event-bus-test COMMAND dstalk-event-bus-test)
+
+# ============================================================
+# dstalk-service-registry-test — ServiceRegistry 补充单元测试
+# ============================================================
+
+add_executable(dstalk-service-registry-test
+    service_registry_test.cpp
+    ${CMAKE_SOURCE_DIR}/dstalk-core/src/service_registry.cpp
+)
+
+target_include_directories(dstalk-service-registry-test
+    PRIVATE ${CMAKE_SOURCE_DIR}/dstalk-core/src
+)
+
+target_compile_features(dstalk-service-registry-test
+    PRIVATE cxx_std_17
+)
+
+add_test(NAME dstalk-service-registry-test COMMAND dstalk-service-registry-test)