feat(connections): fetch server connections

[Rudra-Sankha-Sinhamahapatra]

Description of Changes

• What was changed?
  added server databases fetching facility
• Why was it changed?
  it will help to see other databses on main server
• Any related issues or discussions?

Closes #237 (If applicable, delete this line if not)

Checklist

• My changes are scoped and focused
• I have tested the code locally

Notes to reviewer

• Are there any specific things the reviewer should focus on?

Screen.Recording.2026-02-09.at.1.mp4

cc: @letstri @geekyharsh05

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[Copilot]

Pull request overview

This PR adds the ability to fetch and display all databases from a database server, allowing users to view other databases on the same server and quickly create connections to them. This addresses issue #237 which requested the ability to fetch all databases from a server URL.

Changes:

• Refactored databases-list.tsx by extracting ConnectionCard, LastOpenedConnections, and EmptyConnection into separate components
• Added useServerDatabases hook to fetch databases from a server connection
• Added cloneConnectionForDatabase utility to create new connections for different databases on the same server
• Added SQL queries to list databases for Postgres, MySQL, MSSQL, and ClickHouse
• Extended database schema type definitions to include system tables needed for listing databases

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
apps/desktop/src/routes/_protected/-components/connection-card.tsx	New component extracted from databases-list.tsx with added expand/collapse functionality to show other databases on the same server
apps/desktop/src/routes/_protected/-components/last-opened-connections.tsx	Extracted component for displaying recently opened connections
apps/desktop/src/routes/_protected/-components/empty-connection.tsx	Extracted component for empty state display
apps/desktop/src/routes/_protected/-components/databases-list.tsx	Refactored to use extracted components, now cleaner and more maintainable
apps/desktop/src/entities/connection/hooks/use-server-databases.ts	New hook to fetch list of databases from a server connection
apps/desktop/src/entities/connection/hooks/index.ts	Exports the new useServerDatabases hook
apps/desktop/src/entities/connection/utils/clone-connection.ts	New utility function to clone a connection with a different database name
apps/desktop/src/entities/connection/utils/index.ts	Exports the new clone-connection utility
apps/desktop/src/entities/connection/sql/list-databases.ts	SQL queries to list databases for each supported database type
apps/desktop/src/entities/connection/dialects/postgres/schema/catalog.ts	Added pg_database table type definition
apps/desktop/src/entities/connection/dialects/mysql/schema/information.ts	Added SCHEMATA table type definition
apps/desktop/src/entities/connection/dialects/mssql/schema/sys.ts	Added databases table type definition with comprehensive fields
apps/desktop/src/entities/connection/dialects/clickhouse/schema/system.ts	Added databases table type definition

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[Copilot]

Pull request overview

Copilot reviewed 119 out of 150 changed files in this pull request and generated no new comments.

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