Give folders a dedicated workspace view

[ComputelessComputer]

Summary

Problem: After the notes filter menu lost folder entry points, folder instructions and materials were hard to reach. Putting that UI inside Settings also made the folder list feel like a preference instead of a workspace, and the note folder picker highlighted "No folder" even when a folder like Sales was already selected.

Fix: Folders is now its own workspace, like Templates. Settings still links to it. The note folder picker has See all folders, highlights the current folder, and keeps No folder as a clear action below the list.

Verification

• pnpm -F desktop exec vitest run src/session/components/folder-picker.test.tsx src/folders/index.test.tsx src/sidebar/settings.test.tsx src/store/zustand/tabs/basic.test.ts
• pnpm -F desktop typecheck
• pnpm exec oxlint --quiet --format=github apps/desktop/src/folders apps/desktop/src/session/components/folder-picker.tsx
• Open Settings → Workspace → Folders and confirm the list is in the sidebar
• Open a note in Sales, open the folder picker, and confirm Sales is highlighted with a check; No folder is below it
• Click See all folders and confirm it opens the Folders workspace on Sales

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Note

Medium Risk
New UI surface for folder rename, delete, and material uploads that calls existing catalog and attachment APIs; mistakes could delete folder trees or lose materials, but notes are explicitly preserved.

Overview
Adds a Folders workspace (sidebar list + main editor) so users can manage folders outside Settings—create, search, rename, pick icons, edit context, upload/remove materials, and delete with confirmation.

Folder editor wires to existing session APIs (renameNamedFolder, deleteNamedFolder, folder attachments) and a Zustand selection store for active path, optimistic icon overrides, and hiding deleted paths until queries refresh.

Note folder picker now shows the current folder with a check, toggles off folder assignment by re-selecting the active folder, adds See all folders to open the workspace on the current path, and drops a separate No folder row from the list.

Settings Workspace → Folders navigates to the new tab type { type: "folders" } instead of embedding folder management in the sidebar. i18n strings move from folder-materials to the new folders module; delete copy clarifies nested folders and materials are removed while notes stay in All notes.

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[netlify]

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