Feat: Websites can be organized into hierarchical groups

[SniperCZE]

Summary

Websites can be organized into hierarchical groups with custom names. A group can contain other groups and/or websites. Each website can belong to at most one group, or to no group at all (group_id is NULL by default).

Groups use the same ownership model as websites: they belong either to a user or to a team, never both.

What changed

Database

• Added migration 21_add_website_groups.
• New table website_group stores group metadata: name, optional parent_id (nested groups), user_id / team_id, and created_by.
• Extended website with nullable group_id referencing a group.
• No ClickHouse or tracker changes.
• Fully backward compatible: existing websites and API consumers keep working; new fields are optional.

API

• New CRUD endpoints: GET/POST /api/website-groups, GET/POST/DELETE /api/website-groups/[groupId]
• New tree endpoints: GET /api/me/website-tree, GET /api/teams/[teamId]/website-tree
• Extended website create/update to accept optional groupId.
• Flat website list responses now include groupId and groupPath (e.g. "My project / LAB").
• Deleting a group reparents its contents one level up (subgroups and websites move to the parent group, or to root if the deleted group was at root).
• Website transfer between user and team clears groupId.
• Validation ensures group/website ownership matches and prevents cyclic parent relationships.

Permissions

• Added website group permissions aligned with existing website permissions (view/create/update/delete for personal and team context).

UI

• /websites shows an expandable tree of groups and websites (subgroups first, then websites; both sorted A–Z within each level).
• Added Add group on /websites, with create/edit/delete group dialogs (name, optional parent group; no nesting depth limit).
• Updated website create/edit forms to allow assigning a group.
• When searching on /websites, the UI falls back to a flat list with a Group column (groupPath).
• Hierarchical WebsiteSelect (TopNav, boards) uses grouped dropdown; search shows full group path.
• Admin websites table shows a Group column.
• Team website settings (/settings/websites) reuse the same tree UI.

Translations

• Added new strings in en-US and cs-CZ only; other locales unchanged.

Testing

• Unit tests: src/lib/websiteTree.test.ts, src/permissions/websiteGroup.test.ts — all passing
• E2E API tests: tests/e2e/api-website-group.spec.ts, extended tests/e2e/api-website.spec.ts
• pnpm build passes
• Manual testing with ~15 websites across multiple nesting levels (create/rename/move/delete groups, assign websites, delete non-empty groups, search, team context)

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[greptile-apps]

Greptile Summary

This PR adds hierarchical website groups across the database, API, and UI. The main changes are:

• New website_group model and website.group_id field.
• CRUD and tree endpoints for personal and team website groups.
• Website create/edit support for assigning groups.
• Tree and grouped-select UI for browsing websites.
• Permission checks and tests for website groups.

Confidence Score: 4/5

The grouped selector and bulk user/team cleanup paths need fixes before merging.

• The grouped dropdown can display websites under the wrong group.
• Cloud cleanup can leave retained websites pointing at deleted groups.
• Nested groups can make user or team deletion fail during bulk cleanup.

src/components/input/WebsiteSelect.tsx, src/queries/prisma/user.ts, src/queries/prisma/team.ts

Important Files Changed

Filename	Overview
src/components/input/WebsiteSelect.tsx	Adds grouped website selection, but flattened group sections can capture sibling websites.
src/queries/prisma/websiteGroup.ts	Adds website-group queries, tree loading, and safe single-group reparenting on delete.
src/queries/prisma/team.ts	Extends team deletion to remove groups, but bulk deletion skips hierarchy and website-reference cleanup.
src/queries/prisma/user.ts	Extends user deletion to remove groups, but bulk deletion skips hierarchy and website-reference cleanup.
src/app/api/website-groups/route.ts	Adds list and create endpoints with owner and team validation.
src/app/api/website-groups/[groupId]/route.ts	Adds get, update, and delete endpoints with parent validation and single-group reparenting.
src/lib/websiteTree.ts	Adds tree building, flattening, path lookup, and cycle-check helpers.
prisma/schema.prisma	Adds the WebsiteGroup model and optional Website-to-group relation.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[WebsiteGroup rows] --> B[Website tree APIs]
  B --> C[Website tree table]
  B --> D[Grouped WebsiteSelect]
  A --> E[Website groupId assignments]
  F[Single group delete] --> G[Reparent children and websites]
  H[User/team delete] --> I[Bulk delete groups]
  I --> J[Dangling groupId or nested-delete failure]

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
  A[WebsiteGroup rows] --> B[Website tree APIs]
  B --> C[Website tree table]
  B --> D[Grouped WebsiteSelect]
  A --> E[Website groupId assignments]
  F[Single group delete] --> G[Reparent children and websites]
  H[User/team delete] --> I[Bulk delete groups]
  I --> J[Dangling groupId or nested-delete failure]

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[SniperCZE]

Linked / similar issues:

• Feature request: Improve websites list view: pagination, sorting, and metrics overview #4102
• Ability to reorde the websites on the /websites page #3818