add feast operator docs

[davidwtf]

Summary by CodeRabbit

Release Notes

• Documentation
  • Added comprehensive Feast documentation including installation instructions for the Feast Operator, introduction to Feast concepts and deployment architecture, and an end-to-end quickstart guide for deploying and configuring Feast services with configuration patterns and Kubernetes authorization setup on Alauda Container Platform.

[coderabbitai]

Walkthrough

This pull request adds comprehensive documentation for the Feast Operator integration with Alauda Container Platform, including main overview, installation instructions, conceptual introduction, and detailed quickstart guide with configuration examples and authorization setup.

Changes

Cohort / File(s)	Summary
Feast Documentation docs/en/feast/index.mdx, docs/en/feast/install.mdx, docs/en/feast/intro.mdx, docs/en/feast/quickstart.mdx	Four new documentation pages introducing Feast on Alauda, covering installation steps, core concepts (FeatureStore CR, online/offline stores, registry), deployment workflow, YAML configuration patterns (PVC, Redis, PostgreSQL, object storage backends), service discovery, and Kubernetes authorization/RBAC setup.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Suggested reviewers

• zhaomingkun1030
• typhoonzero

Poem

🐰 Feast documentation blooms so bright,
Installation guides and configs just right,
Feature stores dance with quickstart grace,
Knowledge springs up all over the place! 🌱

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding comprehensive Feast Operator documentation across four new pages (index, install, intro, quickstart).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/feast-docs

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Latest commit:	de86fd7
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Branch Preview URL:	https://feat-feast-docs.alauda-ai.pages.dev

View logs

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@docs/en/feast/install.mdx`:
- Around line 15-17: Add a short clarifying sentence immediately before or after
the violet push command that explicitly states angle-bracketed tokens like
<platform-access-address>, <platform-admin>, and <platform-admin-password> are
placeholders that must be replaced with real values (do not include the angle
brackets when substituting); update the docs/en/feast/install.mdx snippet around
the command so readers will not copy/paste the literal bracketed placeholders.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: cf2d5a1f-4668-4d04-9678-3982b286c2ad

📥 Commits

Reviewing files that changed from the base of the PR and between 3a6fd32 and de86fd7.

📒 Files selected for processing (4)

• docs/en/feast/index.mdx
• docs/en/feast/install.mdx
• docs/en/feast/intro.mdx
• docs/en/feast/quickstart.mdx

[xZhizhizhizhizhi]

/test-pass