feat(grid-agent): supervise grid sessions (#121)

crates/metacrate-grid-agent/tests/dependency_policy.rs

@@ -46,7 +46,7 @@ fn runtime_source_has_no_subprocess_or_native_abi_escape_hatch() {
     let mut files = Vec::with_capacity(8);
     collect_rust_files(&source, &mut files);
     assert!(
-        files.len() <= 10,
+        files.len() <= 12,
         "source-file count needs a reviewed bound update"
     );
     for path in files {
@@ -86,6 +86,25 @@ fn world_backend_requires_the_opaque_policy_authorization() {
     assert!(!backend.contains("decision: PolicyDecision"));
 }
 
+#[test]
+fn live_session_adapter_reuses_only_the_native_network_manager_lifecycle() {
+    let root = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+    let backend = fs::read_to_string(root.join("src/backend.rs")).expect("backend source");
+    for required in [
+        ".native_default_login_params(",
+        ".native_login(",
+        ".native_subscribe_disconnected(",
+        ".native_subscribe_event_queue_running(",
+        ".native_logout_async(",
+    ] {
+        assert!(
+            backend.contains(required),
+            "missing native lifecycle {required}"
+        );
+    }
+    assert!(!backend.contains("reqwest"));
+}
+
 fn collect_rust_files(directory: &Path, output: &mut Vec<PathBuf>) {
     for entry in fs::read_dir(directory).expect("read source directory") {
         let path = entry.expect("source entry").path();