fix(hooks): locate check-messages.sh on any machine; never exit non-zero

The UserPromptSubmit hook only probed D:/claudetools and C:/claudetools, so
on machines where the repo lives elsewhere (e.g. BEAST at
C:/Users/guru/ClaudeTools) no candidate matched and the for-loop's final test
returned 1 — surfacing a hook error on every prompt AND skipping coord-message
delivery. Now try $CLAUDE_PROJECT_DIR and $HOME/ClaudeTools first (keep D:/C:
for other layouts) and end with `true` so a missing script is a no-op, not an
error.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/settings.json

@@ -12,7 +12,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "bash -c 'for p in D:/claudetools C:/claudetools; do f=\"$p/.claude/scripts/check-messages.sh\"; [ -f \"$f\" ] && exec bash \"$f\"; done'",
+            "command": "bash -c 'for p in \"$CLAUDE_PROJECT_DIR\" \"$HOME/ClaudeTools\" D:/claudetools C:/claudetools; do [ -n \"$p\" ] && [ -f \"$p/.claude/scripts/check-messages.sh\" ] && exec bash \"$p/.claude/scripts/check-messages.sh\"; done; true'",
             "timeout": 15
           }
         ]