fix: clean extra file & fix agents use zhipu

[csunny]

Description

• Clear web screenshots, tools/scripts
• Update assets/schema dbgpt.sql
• Fix agent chat with zhipu glm-4

How Has This Been Tested?

No need.

Snapshots:

Include snapshots for easier review.

Checklist:

• My code follows the style guidelines of this project
• I have already rebased the commits and make the commit message conform to the project standard.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules

[Aries-ckt]

r+

[fangyinc]

Nice!

Run with zhipu proxyllm.

LLM_MODEL=zhipu_proxyllm
ZHIPU_MODEL_VERSION=glm-4
ZHIPU_PROXY_API_KEY={your zhipu api key}
PROXY_SERVER_URL=xxxxx

[fangyinc]

r+