fix: use POSIX ps -A instead of BSD -ax for Docker compat (#9723) (#10569)

procps-ng 4.0.4 in Docker rejects BSD-style 'ps eww -ax' with a
'must set personality' error, causing find_gateway_pids() to return
empty and falsely report the gateway as not running.

Fix: replace 'ps eww -ax' with 'ps -A eww'. -A is the POSIX
equivalent of BSD -ax (select all processes), and the eww modifiers
(show environment + wide output) still work as BSD flags alongside
the POSIX -A flag. This preserves the HERMES_HOME= environment
visibility needed for profile-aware PID matching.

Closes #9723

hermes_cli/gateway.py

@@ -222,7 +222,7 @@ def find_gateway_pids(exclude_pids: set | None = None, all_profiles: bool = Fals
                     current_cmd = ""
         else:
             result = subprocess.run(
-                ["ps", "eww", "-ax", "-o", "pid=,command="],
+                ["ps", "-A", "eww", "-o", "pid=,command="],
                 capture_output=True,
                 text=True,
                 timeout=10,