feat: improve remote browser tree routing

- Allow remote host aliases passed via --browser to fan out for read-only
  multi-browser SDK paths while preserving strict routing for mutating commands.
- Add remote host grouping and scoped profile labels to tabs tree output so
  global views avoid repeated host prefixes.
- Carry browser family metadata through remote targets, tabs, and groups and
  style tree browser labels by family.
- Split CLI rendering helpers into a typed rendering package with dedicated
  common, label, tabs-tree, and windows-tree modules.
- Bump browser-cli and extension versions to 0.15.5.
- Cover the new routing and rendering behavior with unit and CLI tests.

browser_cli/serve/control.py

@@ -16,11 +16,19 @@ class ServeControlMixin:
 
   async def handle_control_command(self, msg: dict) -> bool:
     if self.command == "browser-cli.targets":
-      from browser_cli.client import active_browser_targets
-      targets = [
-        {"profile": target.profile, "displayName": target.display_name}
-        for target in active_browser_targets(include_remotes=False)
-      ]
+      from browser_cli.client import active_browser_targets, send_command
+      targets = []
+      for target in active_browser_targets(include_remotes=False):
+        item = {"profile": target.profile, "displayName": target.display_name}
+        try:
+          clients = send_command("clients.list", profile=target.profile, suppress_pq_warning=True)
+          if clients:
+            browser_name = clients[0].get("name")
+            if browser_name:
+              item["browserName"] = browser_name
+        except Exception:
+          pass
+        targets.append(item)
       await self.send_ok(targets, self.command)
       log_request(self.addr, self.command, None, "OK")
       return True