Bug bash 2: 11 bugs in Stacks, Alerts, Docker, skins and the installer, fixed and verified (BUGS.md)

Stacks: deploy with every compose file (labels from inspect, not comma-joined ps);
refuse a stale overwrite; empty list without Docker. Alerts: firing state survives a
restart without re-announcing; vanished alerts are recorded as cleared with the reason;
rule values validated; 200 rules. Docker: 404 for a removed container's logs. Skins: four
palettes lifted to readable contrast. Phone: bigger toggles and swatches. Installer:
deploy republishes; an older published build is never installed silently.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

internal/api/docker.go

@@ -182,7 +182,11 @@ func (s *Server) dockerLogs(w http.ResponseWriter, r *http.Request) {
 	defer cancel()
 	out, err := dockerRun(ctx, append(args, id)...)
 	if err != nil {
-		jsonErr(w, 500, err.Error())
+		code := 500
+		if strings.Contains(strings.ToLower(err.Error()), "no such container") {
+			code = 404
+		}
+		jsonErr(w, code, err.Error())
 		return
 	}
 	type line struct {