PSP net code first pass

src/dusklinux/network/networklinux.h

@@ -59,14 +59,34 @@ errorret_t networkLinuxInit();
 /**
  * Updates the network manager, called once per frame to handle completed
  * HTTP requests.
- * 
+ *
  * @return Any error that occurs.
  */
 errorret_t networkLinuxUpdate();
 
+/**
+ * Returns true — Linux uses the OS network stack which is always available.
+ *
+ * @return true
+ */
+bool_t networkLinuxIsConnected();
+
+/**
+ * No-op — Linux connection is managed by the OS. Calls onConnected immediately.
+ *
+ * @param onConnected Callback invoked immediately.
+ * @param onFailed Unused.
+ * @param user Passed to onConnected.
+ */
+void networkLinuxRequestConnection(
+  void (*onConnected)(void *user),
+  void (*onFailed)(errorret_t error, void *user),
+  void *user
+);
+
 /**
  * Disposes the network manager.
- * 
+ *
  * @return Any error that occurs.
  */
 errorret_t networkLinuxDispose();