new docs for PVC storage and model management

[samzong]

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #168

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

[gemini-code-assist]

Summary of Changes

Hello @samzong, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

I've significantly expanded the documentation for OME, focusing on how models are managed and stored, particularly with Persistent Volume Claims (PVCs). This update introduces detailed architectural explanations, a comprehensive reference for all supported storage types, and practical user guides. The goal is to provide clear, in-depth information for users and developers on leveraging various storage backends, ensuring they can efficiently manage and serve models within the OME ecosystem.

Highlights

• New PVC Storage Architecture Documentation: I've added comprehensive documentation detailing the architecture and data flow for using Persistent Volume Claims (PVCs) as a storage backend for models in OME. This explains how PVCs are handled differently from other storage types, bypassing the model agent and leveraging native Kubernetes volume management.
• Comprehensive Storage Types Reference: I've introduced a new, exhaustive reference guide for all supported storage types within OME, including PVC, OCI Object Storage, HuggingFace Hub, AWS S3, Azure Blob, Google Cloud Storage, GitHub Releases, and custom Vendor Storage. This guide covers URI formats, authentication, examples, and selection criteria for each.
• Dedicated PVC Storage Troubleshooting Guide: I've created a dedicated troubleshooting guide for common issues encountered when using PVC storage with OME models. This guide provides symptoms, causes, solutions, and diagnostic tools to help users resolve problems efficiently.
• New User Guide for PVC Storage Configuration: I've added a user-focused guide on how to configure and utilize PVC storage for models, including step-by-step instructions, examples for different access modes, and best practices for performance and security.

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[gemini-code-assist]

Code Review

This pull request adds extensive documentation for using PVC storage and managing models in OME. The new documentation is well-structured and comprehensive, covering architecture, user guides, reference material, and troubleshooting. My review focuses on improving the correctness and consistency of the examples and diagnostic scripts. I've identified a bug in the troubleshooting scripts that would cause them to fail for ClusterBaseModels, an incomplete credential configuration in a migration example, and some minor inconsistencies in model names and formatting across the new documents. Overall, this is a great addition to the project's documentation.

[samzong]

@slin1237 I finished the first version of this PR, there should be many problems, hope to get everyone's Review.

[slin1237]

leaving other comments

[samzong]

@slin1237 sorry for late (toooooooo), I have fix all comments.

Hope it's not too late.

[samzong]

/gemini review

In accordance with the issue of #168

[gemini-code-assist]

Code Review

This pull request introduces comprehensive documentation for PVC storage and model management, covering architecture, user guides, and troubleshooting. It also integrates Mermaid.js for rendering diagrams in the documentation. The new documentation is well-structured and provides clear examples for various use cases. The Mermaid integration is a valuable addition for visual explanations.