Final moss client changes for Livekit Integration

[yatharthk2]

Changes :

1. removed project and api key retrieving property.
2. Removed auto load index parameter from query definition
3. added example script for developers

[Copilot]

Pull request overview

This PR refines the MossClient API by removing unnecessary properties, simplifying the query interface, and adding comprehensive developer documentation through example scripts.

Key Changes:

• Removed public project_id and project_key properties from MossClient for better security encapsulation
• Simplified the query() method by removing the auto_load parameter and always loading the index before querying
• Added a complete lifecycle demonstration script with .env configuration example

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
MossClient.py	Removed property accessors for sensitive credentials, simplified query method to always load index, and redacted project_id in string representation for security
MossLifeCycle.py	New comprehensive example demonstrating all MossClient operations including index creation, querying, document management, and cleanup
.env.example	New environment variable template for configuring the example script
README.md	Updated documentation to reflect new example file location

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[HarshaNalluru]

delete this repo