show mute status correctly when tab mute and add to get single tab status

browser_cli/__init__.py

@@ -173,6 +173,13 @@ class BrowserCLI:
         """Switch browser focus to a tab by ID."""
         self._cmd("tabs.active", {"tabId": tab_id})
 
+    def tabs_status(self, tab_id: int | None = None) -> Tab:
+        """Return status for the active tab or a specific tab."""
+        data = self._cmd("tabs.status", {"tabId": tab_id})
+        if not isinstance(data, dict) or "id" not in data:
+            raise RuntimeError("No tab status returned")
+        return self._make_tab(data)
+
     def tabs_mute(self, tab_id: int | None = None) -> int:
         """Mute the active tab or a specific tab. Returns the target tab ID."""
         result = self._cmd("tabs.mute", {"tabId": tab_id})