fix: strip script dir from sys.path before imports in x/ Python scripts

Python adds the script directory to sys.path[0] at startup and tries to
create a FileFinder for it. When the script lives on a 9P FUSE mount the
FileFinder init fails before any stdlib import can succeed. sys is a
builtin and loads without filesystem access, so strip the path first.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/x/elevate

@@ -7,10 +7,11 @@ for running the command outside the Landlock sandbox.
 
 Usage: elevate -- <cmd>
 """
+import sys
+sys.path = sys.path[1:]  # strip script dir — may be a non-navigable fs (e.g. 9P)
 import json
 import os
 import socket
-import sys
 
 
 def default_socket_path():

scripts/x/elevate-adapter-superpowerd

@@ -15,11 +15,12 @@ Environment:
     SUPERPOWERD_SOCKET         override superpowerd socket path
     SUPERPOWERD_SOCKET_DIR     directory containing superpowerd.sock
 """
+import sys
+sys.path = sys.path[1:]  # strip script dir — may be a non-navigable fs (e.g. 9P)
 import json
 import os
 import signal
 import socket
-import sys
 import threading