feat: implement workspace management and member invitations

- Added tenant API for managing workspaces, including listing, creating, and inviting members.
- Introduced new models for organizations, workspaces, and workspace memberships in the backend.
- Created frontend components for workspace administration, allowing users to manage workspaces and invite members.
- Updated document listing to support workspace-specific filtering.
- Implemented account settings page for user profile management and password changes.
- Added end-to-end tests for workspace administration and dashboard functionalities.

backend/app/services/document_service.py

@@ -40,6 +40,7 @@ def _serialize(doc: dict[str, Any]) -> dict[str, Any]:
         "owner_id": doc.get("owner_id"),
         "visibility": doc.get("visibility", "private"),
         "members": doc.get("members", []),
+        "workspace_id": doc.get("workspace_id"),
     }
 
 
@@ -84,6 +85,7 @@ async def create_document(
         "last_visited_at": now,
         "visibility": "private",
         "members": [],
+        "workspace_id": data.workspace_id,
     }
     await db[COLLECTION].insert_one(doc)
     return _serialize(doc)
@@ -104,6 +106,7 @@ async def list_documents(
     doc_type: CreateType | None = None,
     stead_id: str | None = None,
     parent_page_id: str | None = None,
+    workspace_id: int | None = None,
     starred: bool | None = None,
     sort: SortField = "updated_at",
 ) -> list[dict[str, Any]]:
@@ -117,6 +120,8 @@ async def list_documents(
         extras["parent_page_id"] = parent_page_id
     if starred is not None:
         extras["starred"] = starred
+    if workspace_id is not None:
+        extras["workspace_id"] = workspace_id
     if extras:
         query = {"$and": [query, extras]}
 
@@ -192,6 +197,8 @@ async def update_document(
         updates["starred"] = data.starred
     if data.stead_id is not None:
         updates["stead_id"] = data.stead_id
+    if data.workspace_id is not None:
+        updates["workspace_id"] = data.workspace_id
     if "parent_page_id" in data.model_fields_set:
         updates["parent_page_id"] = data.parent_page_id