feat: Enhance Template Generation Logic in OPENIM Deployment Scripts

[cubxxw]

Summary: This PR introduces significant improvements to the template generation process in the OPENIM deployment scripts. The changes are focused on enhancing user interaction and information dissemination during the configuration phase.

Changes:

1. Added Informational Link: A link to the environment configuration documentation (https://github.com/openimsdk/open-im-server/blob/main/docs/contrib/environment.md) has been added. This provides users with quick access to detailed configuration information.
2. File Overwrite Confirmation: A new interactive prompt has been implemented. When a target output file already exists, the script now asks the user whether to overwrite the file. This adds a layer of safety against unintentional data loss.
   • If the user agrees to overwrite (Y), the script proceeds with the generation and informs the user that the previous configuration will be lost.
   • If the user chooses not to overwrite (N), the script skips the generation of that particular file and moves on, ensuring existing configurations are preserved.

Impact:

• User Experience: The changes are expected to make the deployment process more user-friendly and informative, reducing potential confusion about environment configurations.
• Safety: The introduction of overwrite confirmation minimizes the risk of accidental data loss during the deployment process.

Rationale: These changes address two key aspects:

• Information Accessibility: Directing users to comprehensive documentation ensures they have all the necessary information for informed decision-making.
• Data Integrity: By confirming file overwrites, users have better control over their configuration files, reducing the likelihood of accidental overwrites.

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
• Apply: Add docstrings to all functions and file headers.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4b19202) 4.86% compared to head (86213a1) 4.86%.

Additional details and impacted files

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  Coverage   4.86%   4.86%           
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  Files         49      49           
  Lines       4256    4256           
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  Hits         207     207           
  Misses      4037    4037           
  Partials      12      12           

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