✨ Adding workspace filter to snippets/folders list and listAll() via page=all

[simonc]

Gaps raised while building the CLI.

Changes

• snippets.list() and templateFolders.list() now require workspace_id (sent as q[workspace_id]). The backend applies WorkspaceOrNoneFilter, so without it these calls always returned an empty list.
• New listAll() on workspaces, document templates, snippets and template folders: one request with page=all, returns a plain T[]. Backed by a new fetchAll helper in pagination.ts, since a page=all response carries no meta and fetchPage would reject it.
• Document cards get no listAll(): their optimized index does not honor page=all.
• README, llms.txt, CHANGELOG (Unreleased) and a minor changeset.

Notes

Making workspace_id required is a type-level change, released as minor because calls without it never returned data.

Tests

pnpm test (204 passing), pnpm lint, tsc --noEmit.