Replace GTK4 desktop app with FastAPI web app (Sovran_SystemsOS Hub)

Agent-Logs-Url: https://github.com/naturallaw777/staging_alpha/sessions/5c173acb-776f-4cd2-bc89-bb7675e38677

Co-authored-by: naturallaw777 <99053422+naturallaw777@users.noreply.github.com>

app/sovran_systemsos_web/config.py

@@ -0,0 +1,20 @@
+"""Load the Nix-generated config for Sovran_SystemsOS_Hub."""
+
+import json
+import os
+
+
+def load_config() -> dict:
+    """Read config from the path injected by the Nix derivation."""
+    path = os.environ.get(
+        "SOVRAN_HUB_CONFIG",
+        os.path.join(
+            os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+            "config.json",
+        ),
+    )
+    try:
+        with open(path, "r") as fh:
+            return json.load(fh)
+    except (FileNotFoundError, json.JSONDecodeError):
+        return {"refresh_interval": 5, "command_method": "systemctl", "services": []}