fix: add redis badge and Supported databases section in README.md [skip-release]

[RambokDev]

Summary by CodeRabbit

• Documentation
  • Added comprehensive database support documentation detailing supported engines (PostgreSQL, MySQL, MariaDB, MongoDB, SQLite, Redis, Valkey, MSSQL Server) with version information and restore capabilities.
  • Added link to Database Servers documentation for additional reference.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 2b573a04-4fd1-4664-b21e-00fae084200c

📥 Commits

Reviewing files that changed from the base of the PR and between b1ccf6e and 41ff553.

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Walkthrough

Updated README.md by adding a Redis badge to the shields section and introducing a new "Supported databases" table documenting engine support status, versions, and restore capabilities across PostgreSQL, MySQL, MariaDB, MongoDB, SQLite, Redis, Valkey, and MSSQL Server.

Changes

Cohort / File(s)	Summary
Documentation README.md	Added Redis badge to shield row; introduced "Supported databases" section with table listing database engines, support status, supported versions, and restore capability; duplicated section in two locations within the README.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Hoppity hop, the docs are now complete,
With databases listed, so shiny and neat!
Redis and Valkey, PostgreSQL too,
A carrot-full of engines, all working for you! 🥕

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/readme

📝 Coding Plan

• Generate coding plan for human review comments

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}