Add LibreDB Studio template

[yusuf-gundogdu]

This PR adds a template for LibreDB Studio — an MIT-licensed, AI-powered open-source SQL IDE that connects to PostgreSQL, MySQL, Oracle, SQL Server, SQLite, MongoDB and Redis from the browser.

Files added under templates/libredb-studio/:

• index.ts — single app service from ghcr.io/libredb/libredb-studio:0.9.27, port 3000, persistent /app/data volume, auto-generated admin/user passwords and JWT secret
• meta.yaml — name, description, schema, links, benefits, features, tags
• assets/logo.svg — official logo
• assets/screenshot.png — promotional screenshot

Defaults to SQLite storage, so no external database is required for the IDE itself.

Links:

• GitHub: https://github.com/libredb/libredb-studio
• Website: https://libredb.org/

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[cevheri]

Maintainer of LibreDB Studio here — this one felt like a natural fit for Easypanel, so let me explain why.

You already treat databases as first-class citizens: a Postgres or MySQL service is one click away.
The piece that's usually still missing is working with that database afterwards and that's normally where people drop back to the command line or install a desktop client.
LibreDB Studio closes that gap. It's a browser-based SQL IDE that lives right next to the databases it talks to, so going from "service is running" to "I'm exploring my schema and running queries" stays a one-click, no-CLI experience — the same simplicity the rest of the panel is built on.
Postgres, MySQL, Oracle, SQL Server, SQLite, MongoDB and Redis are all supported.

The template keeps to that spirit: a single service, secrets generated for you, a persistent /app/data volume, ready in seconds. It's MIT-licensed and actively maintained, and we already run it as an official template on CapRover and Railway — we keep those current with every release, so the Easypanel one wouldn't drift after merge.

@deiucanta, would love your review whenever the queue allows — and if anything about the structure isn't how you prefer templates, tell us and we'll match it.