fix(admin): recognize Brave in _chrome_running process check

src/browser_harness/admin.py

@@ -498,16 +498,16 @@ def print_update_banner(out=None):
 
 
 def _chrome_running():
-    """Cross-platform best-effort check for a running Chrome/Edge process."""
+    """Cross-platform best-effort check for a running Chromium-based browser process."""
     import platform, subprocess
     system = platform.system()
     try:
         if system == "Windows":
             out = subprocess.check_output(["tasklist"], text=True, timeout=5)
-            names = ("chrome.exe", "msedge.exe")
+            names = ("chrome.exe", "msedge.exe", "brave.exe")
         else:
             out = subprocess.check_output(["ps", "-A", "-o", "comm="], text=True, timeout=5)
-            names = ("Google Chrome", "chrome", "chromium", "Microsoft Edge", "msedge")
+            names = ("Google Chrome", "chrome", "chromium", "Microsoft Edge", "msedge", "Brave Browser", "brave-browser", "brave")
         return any(n.lower() in out.lower() for n in names)
     except Exception:
         return False

tests/unit/test_admin.py

@@ -20,6 +20,22 @@ def close(self):
         self.closed = True
 
 
+def test_chrome_running_detects_brave_on_windows(monkeypatch):
+    import platform, subprocess
+    monkeypatch.setattr(platform, "system", lambda: "Windows")
+    monkeypatch.setattr(subprocess, "check_output", lambda *a, **kw: "Image Name\nbrave.exe                  1234 Console\n")
+
+    assert admin._chrome_running()
+
+
+def test_chrome_running_detects_brave_on_posix(monkeypatch):
+    import platform, subprocess
+    monkeypatch.setattr(platform, "system", lambda: "Linux")
+    monkeypatch.setattr(subprocess, "check_output", lambda *a, **kw: "init\nbrave-browser\nbash\n")
+
+    assert admin._chrome_running()
+
+
 def test_local_chrome_mode_is_false_when_env_provides_remote_cdp():
     assert not admin._is_local_chrome_mode({"BU_CDP_WS": "ws://example.test/devtools/browser/1"})