Add hub auto-launch: XDG autostart, API endpoints, and frontend toggle

Agent-Logs-Url: https://github.com/naturallaw777/staging_alpha/sessions/0b0d70c0-01d1-49d1-b9ca-8d4f8e5af64a

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

app/sovran_systemsos_web/server.py

@@ -57,6 +57,7 @@ ZEUS_CONNECT_FILE = "/var/lib/secrets/zeus-connect-url"
 REBOOT_COMMAND = ["reboot"]
 
 ONBOARDING_FLAG = "/var/lib/sovran/onboarding-complete"
+AUTOLAUNCH_DISABLE_FLAG = "/var/lib/sovran/hub-autolaunch-disabled"
 
 # ── Tech Support constants ────────────────────────────────────────
 
@@ -1390,6 +1391,39 @@ async def api_onboarding_complete():
     return {"ok": True}
 
 
+# ── Auto-launch endpoints ─────────────────────────────────────────
+
+@app.get("/api/autolaunch/status")
+async def api_autolaunch_status():
+    """Check if Hub auto-launch on login is enabled."""
+    disabled = os.path.exists(AUTOLAUNCH_DISABLE_FLAG)
+    return {"enabled": not disabled}
+
+
+class AutolaunchToggleRequest(BaseModel):
+    enabled: bool
+
+
+@app.post("/api/autolaunch/toggle")
+async def api_autolaunch_toggle(req: AutolaunchToggleRequest):
+    """Enable or disable Hub auto-launch on login."""
+    if req.enabled:
+        # Remove the disable flag to enable auto-launch
+        try:
+            os.remove(AUTOLAUNCH_DISABLE_FLAG)
+        except FileNotFoundError:
+            pass
+    else:
+        # Create the disable flag to suppress auto-launch
+        os.makedirs(os.path.dirname(AUTOLAUNCH_DISABLE_FLAG), exist_ok=True)
+        try:
+            with open(AUTOLAUNCH_DISABLE_FLAG, "w") as f:
+                f.write("")
+        except OSError as exc:
+            raise HTTPException(status_code=500, detail=f"Could not write flag file: {exc}")
+    return {"ok": True, "enabled": req.enabled}
+
+
 @app.get("/api/config")
 async def api_config():
     cfg = load_config()