fix that the cli still used the DEFAULT_SOCKET Const, give better error message when no browser found adding test for client and update cli test, and update version and readme

browser_cli/cli.py

@@ -124,7 +124,7 @@ main.add_command(search_group)
 def cmd_clients():
     """Show connected browser clients."""
     import json as _json
-    from browser_cli.client import REGISTRY_PATH, DEFAULT_SOCKET
+    from browser_cli.client import REGISTRY_PATH
 
     # Build a map of profile → socket path from the registry
     profiles: dict[str, str] = {}
@@ -133,8 +133,6 @@ def cmd_clients():
             profiles = _json.loads(REGISTRY_PATH.read_text())
         except Exception:
             pass
-    if not profiles:
-        profiles = {"default": DEFAULT_SOCKET}
 
     all_clients = []
     for profile_name, sock_path in profiles.items():
@@ -148,7 +146,7 @@ def cmd_clients():
             all_clients.append({"profile": profile_name, "name": "—", "version": "—", "platform": "disconnected"})
 
     if not all_clients:
-        console.print("[yellow]No browser clients found[/yellow]")
+        console.print("[yellow]No browser clients found. Start a browser with the extension enabled first.[/yellow]")
         sys.exit(1)
 
     from rich.table import Table
@@ -158,7 +156,7 @@ def cmd_clients():
     table.add_column("Version")
     table.add_column("Platform")
     for c in all_clients:
-        table.add_row(c.get("profile", "default"), c.get("name", ""), c.get("version", ""), c.get("platform", ""))
+        table.add_row(c.get("profile", ""), c.get("name", ""), c.get("version", ""), c.get("platform", ""))
     console.print(table)