showTimeTravelDialog() {
      let dialog = document.getElementById("model-devtools-time-travel-dialog");
      if (!dialog) {
        dialog = document.createElement("div");
        dialog.id = "model-devtools-time-travel-dialog";
      }
      const statesList = [...this.history].reverse().map((snapshot, index) => `
            <div class="time-travel-item">
                <div>Time: ${new Date(snapshot.timestamp).toLocaleTimeString()}</div>
                <div>Type: ${snapshot.type}</div>
                <div>Property: ${snapshot.property || snapshot.event || snapshot.path || ""}</div>
                <div>Value: ${snapshot.type === "computed-update" ? snapshot.newValue : typeof snapshot.oldValue !== "undefined" && typeof snapshot.newValue !== "undefined" ? `${JSON.stringify(snapshot.oldValue)} -> ${JSON.stringify(snapshot.newValue)}` : JSON.stringify(snapshot.newValue || snapshot.value || "")}</div>
                <button style="display: none" onclick="window.__MODEL_DEVTOOLS__.timeTravel(${this.history.length - 1 - index})">Apply this state</button>
            </div>
        `).join("");
      dialog.innerHTML = `
            <div class="dev-tools-header">
                <span>\u23F1 Time Travel</span>
                <div>
                    <button style="margin-left: auto;" onclick="window.__MODEL_DEVTOOLS__.clearTimeTravel()">CLear</button>
                    <button onclick="this.parentElement.parentElement.parentElement.remove()">\xD7</button>                
                </div>
            </div>
            <div class="time-travel-items">${statesList || "Nothing to show!"}</div>
        `;
      document.body.appendChild(dialog);
    }
Displays the Time Travel dialog by:
- Creating or reusing existing dialog container
- Generating a reversed chronological list of snapshots
- Formatting snapshot data (timestamp, type, property, old/new values)
- Displaying changes in computed properties and value transitions