Fix restore_from_log panic on Thinking entries, fix bail nullglob

restore_from_log called .message() on all entries including Thinking
entries, which panic. Filter them out alongside Log entries.

Also fix bail-no-competing.sh: without nullglob, when no pid-* files
exist the glob stays literal and always triggers a false bail.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

src/subconscious/agents/bail-no-competing.sh

@@ -1,11 +1,13 @@
 #!/bin/bash
 # Bail if other agents are alive in the state dir.
-# $1 = path to this agent's pid file
+# $1 = this agent's pid file name (e.g. pid-12345)
 # cwd = state dir
 #
 # Exit 0 = continue, exit 1 = bail
 
-my_pid_file=$(basename "$1")
+shopt -s nullglob
+
+my_pid_file="$1"
 
 for f in pid-*; do
     [[ $f != $my_pid_file ]] && exit 1