fix bullpen-triage/selfimprove ExecStart (--system deploy needs /usr/local/bin, not ~/.local/bin); @skeptic/@architect now answer direct asks, not just chat turns

triage.service has crash-looped since it was enabled (27k+ restarts, never
ran once) because its ExecStart pointed at the user-layout bin path while
the unit was deployed via install.sh --system (symlinks live in
/usr/local/bin). selfimprove.service had the same latent bug, dormant until
its weekly timer next fired.

bullpen_participant.py's _read_chats() only ever collected type=="chat"
messages, so a direct type=="ask" ping (or any one-shot question) to
@skeptic or @architect was invisible to the turn loop. @architect appeared
to work anyway because it has a second, redundant responder
(architect_lurker, opencode-backed) that @skeptic never got — so @skeptic
was silently unreachable outside an active debate turn.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EWpfhDgYNA21tETDP9ueBE

lib/bullpen_participant.py

@@ -52,7 +52,7 @@ def _read_chats():
             continue
         try:
             m = json.loads(line)
-            if m.get("type") == "chat":
+            if m.get("type") in ("chat", "ask"):
                 out.append(m)
         except Exception:
             pass

systemd/bullpen-selfimprove.service

@@ -4,4 +4,4 @@ After=network-online.target
 
 [Service]
 Type=oneshot
-ExecStart=%h/.local/bin/bullpen-selfimprove
+ExecStart=/usr/local/bin/bullpen-selfimprove

systemd/bullpen-triage.service

@@ -5,7 +5,7 @@ After=network-online.target
 [Service]
 Type=simple
 Environment=PATH=/home/mfritsche/.local/bin:/usr/local/bin:/usr/bin:/bin
-ExecStart=/home/mfritsche/.local/bin/bullpen-triage
+ExecStart=/usr/local/bin/bullpen-triage
 Restart=always
 RestartSec=5