feat: host folder grouping for all host types

[tomsihap]

Summary

• Adds a Folder field to the Edit modal of all 4 host types (Proxy Hosts, Redirection Hosts, Streams, 404 Hosts), backed by meta.folder — no DB migration required
• Groups hosts by folder in each dashboard table using TanStack Table v8 built-in grouping, with a collapsible folder header row showing enabled/disabled badge counts
• Extends client-side search to match folder names in addition to existing fields
• Hosts without a folder appear at the top of the table as a flat list; named folders appear below, collapsed by default

Technical details

• Data model: meta.folder (string, optional) on existing meta JSON column — zero schema changes
• Shared infrastructure: TableBody extended with a renderRow escape-hatch (backward-compatible) allowing custom grouped row rendering
• Reusable component: FolderField combobox reads existing folder names from the React Query cache via prefix-matching (getQueriesData) for autocomplete — no extra API calls
• TanStack grouping: hidden folder accessor column drives grouping; columnVisibility: { folder: false } keeps it out of rendered cells

Behaviour

Scenario	Result
Host without folder	Flat list at top (unchanged appearance)
Folder default state	Collapsed
Folder persistence	None (resets on page load)
Search matches host inside folder	Folder header visible, stays closed
Search matches folder name	Folder header visible, stays closed
Create folder	Type name in Edit modal Folder field
Remove from folder	Clear Folder field in Edit modal

Screenshots

Test plan

• Start dev stack: ./scripts/start-dev → open http://localhost:3081
• Edit a Proxy Host → Details tab → "Folder" field visible below Access List
• Assign two hosts to the same folder → folder accordéon appears in table
• Click folder header → expands/collapses
• Reload page → folders collapsed again
• Type folder name in search → folder header appears (stays closed)
• Type domain name in search → matching hosts found regardless of folder
• Edit host → clear Folder field → host moves back to flat list
• Repeat above for Redirection Hosts, Streams, 404 Hosts

🤖 Generated with Claude Code

[tomsihap]

Feel free to close if the contributing policy refuses Claude Code. This PR aims to cover this old issue #409

[nginxproxymanagerci]

Docker Image for build 2 is available on DockerHub:

nginxproxymanager/nginx-proxy-manager-dev:pr-5358

Note

Ensure you backup your NPM instance before testing this image! Especially if there are database changes.
This is a different docker image namespace than the official image.

Warning

Changes and additions to DNS Providers require verification by at least 2 members of the community!

[TheMazeIsAmazing]

Just tried the docker image, this is a great addition!

I've a suggestion regarding the styling of these folders: is it possible to make it more distinct which hosts belong to a folder, and which do not?

Example mock-up image:

As you could see, baserow and beszel are attached to a test folder, and librechat isn't.

This would make it much more clear when you have a mix of hosts with / without a folder.