[Bug]DevUI freezes/crashes browser when inspecting tool logs

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🔴 Required Information

Describe the Bug:
In the new DevUI (introduced in v1.24.0 and present in v1.24.1), clicking on a tool execution log in the chat history to view its details causes severe rendering issues. After viewing the details in the left-hand panel for a few seconds, the screen glitches, leading to a complete freeze or crash of the Chrome browser.

Steps to Reproduce:

1. Start the DevUI by running adk web.
2. Start a chat session and prompt the agent to use a tool (e.g., ensure the agent triggers execute sql or similar).
3. Wait for the agent to complete the task and provide a final answer.
4. Click on the tool execution step in the chat stream to inspect the details.
5. Watch the details displayed in the left-hand panel for a few seconds.
6. Observe that the screen starts to glitch, followed by the browser becoming unresponsive.

Expected Behavior:
I should be able to view the tool execution details in the left panel indefinitely without any graphical glitches or browser crashes.

Observed Behavior:
After clicking the tool execution log and viewing the left panel for a few seconds, the UI rendering becomes corrupted (screen glitches), and shortly after, the entire Google Chrome browser freezes and crashes.

Environment Details:

• ADK Library Version: 1.24.1
• Desktop OS: Windows 11
• Python Version: 3.13.9
• Browser: Google Chrome 144.0.7559.133

Model Information:

• Are you using LiteLLM: No
• Which model is being used: gemini-2.5-flash

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🟡 Optional Information

Regression:
This issue seems to be related to the new DevUI introduced in version 1.24.0, specifically the feature that allows inspecting tool execution details in the side panel.

How often has this issue occurred?:

• Always (100%)
  (Reproduced 6 out of 6 times)