feat: use Alpine AOT images, static SQLite and Podman host metrics [CI]

ci/stage-node-image.py

@@ -18,6 +18,9 @@ GLOBAL_BACKEND_FILES = {
     "NuGet.Config",
     "NuGet.config",
 }
+# The container stages backend as a standalone tree. Copy the repository-wide
+# SDK and package versions into it so restore/publish use the same configuration.
+ROOT_BUILD_FILES = {"Directory.Packages.props", "global.json"}
 CONTAINERFILES = {
     "agent": ROOT / "packaging/container/Agent.NativeBuild.Containerfile",
     "probe": ROOT / "packaging/container/Probe.NativeBuild.Containerfile",
@@ -49,6 +52,10 @@ def stage(component: str, destination: Path) -> None:
         target.parent.mkdir(parents=True, exist_ok=True)
         shutil.copy2(path, target)
 
+    for name in ROOT_BUILD_FILES:
+        for directory in (restore, source):
+            shutil.copy2(ROOT / name, directory / name)
+
     config = destination / "config"
     config.mkdir()
     (config / ".keep").write_text("", encoding="utf-8")