refactor: 子模块CapacityReport与InterferenceETL迁移至plugins目录

.gitmodules

@@ -1,8 +1,8 @@
 [submodule "CapacityReport"]
-	path = CapacityReport
+	path = plugins/CapacityReport
 	url = https://git.asio.asia/Metrix/CapacityReport.git
 	branch = main
 [submodule "InterferenceETL"]
-	path = InterferenceETL
+	path = plugins/InterferenceETL
 	url = https://git.asio.asia/Metrix/InterferenceETL.git
 	branch = main

dev.py

@@ -8,7 +8,7 @@ Starts up to four processes and merges their logs into this window:
   [web]      Metrix web          http://127.0.0.1:5173  (vite HMR)
   [capa-api] CapacityReport API  http://127.0.0.1:9081  (auto-reload, own venv)
   [capa-web] CapacityReport web  http://127.0.0.1:5174  (vite HMR)
-CapacityReport is the optional submodule under CapacityReport/; it is skipped if absent and
+CapacityReport is the optional submodule under plugins/CapacityReport/; it is skipped if absent and
 its failures never stop the Metrix services. Press Ctrl+C once to stop everything.
 """
 
@@ -34,7 +34,7 @@ try:
 except ValueError:
     BACKEND_PORT = 8000
 
-CAPA_DIR = ROOT / "CapacityReport"
+CAPA_DIR = ROOT / "plugins" / "CapacityReport"
 CAPA_VENV_PYTHON = CAPA_DIR / ".venv" / ("Scripts" if IS_WINDOWS else "bin") / ("python.exe" if IS_WINDOWS else "python")
 CAPA_BACKEND_PORT = 9081
 CAPA_WEB_PORT = 5174