feat: v0.8.2 clickable paths, alert sessions, ops guard and trail

- Terminal link provider: printed paths that are files of the session open
  in Files (at the line); the file list is preloaded so the first hover works.
- Alerts: "In a new session" opens alert-<name> and types the prompt once
  Claude is up.
- devdesk-guard PreToolUse(Bash) hook: permissionDecision "ask" for
  destructive commands (verified to prompt in auto mode); DEVDESK_GUARD and
  guard.local.
- State hook logs Bash commands and derives host tags (ssh targets, CT/VM
  ids); --list carries tags, --peek the last commands; UI shows both.

Closes #21
Closes #18
Closes #27

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Makefile

@@ -40,7 +40,7 @@ install: all
 	install -m 0644 libexec/devdesk-lib.sh $(DESTDIR)$(LIBDIR)/devdesk-lib.sh
 	install -m 0755 libexec/devdesk-picker libexec/devdesk-claude-run libexec/devdesk-session-hook \
 		libexec/devdesk-tmux-ready libexec/devdesk-serve libexec/devdesk-statusline \
-		libexec/devdesk-deploy libexec/devdesk-state-hook libexec/devdesk-notify-matrix $(DESTDIR)$(LIBDIR)/
+		libexec/devdesk-deploy libexec/devdesk-state-hook libexec/devdesk-notify-matrix libexec/devdesk-guard $(DESTDIR)$(LIBDIR)/
 	install -m 0644 libexec/devdesk-files.sh libexec/devdesk-inbox.sh $(DESTDIR)$(LIBDIR)/
 	install -m 0755 build/ttyd $(DESTDIR)$(LIBDIR)/bin/ttyd
 	install -m 0644 dist/index.html share/tmux.conf share/claude-settings.json $(DESTDIR)$(SHAREDIR)/