feat(workspaces): implement workspace limits feature with backend integration and UI updates

surfsense_backend/tests/unit/routes/test_workspaces_limits.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+from types import SimpleNamespace
+
+import pytest
+from fastapi import HTTPException
+
+from app.routes import workspaces_routes
+from app.schemas import WorkspaceCreate
+
+pytestmark = pytest.mark.unit
+
+
+class _CountResult:
+    def __init__(self, count: int):
+        self.count = count
+
+    def scalar_one(self) -> int:
+        return self.count
+
+
+class _FakeSession:
+    def __init__(self, owned_count: int):
+        self.owned_count = owned_count
+
+    async def execute(self, _statement):
+        return _CountResult(self.owned_count)
+
+
+@pytest.mark.asyncio
+async def test_read_workspace_limits_uses_backend_config(monkeypatch):
+    monkeypatch.setattr(
+        workspaces_routes.config,
+        "MAX_WORKSPACES_PER_USER",
+        37,
+        raising=False,
+    )
+
+    result = await workspaces_routes.read_workspace_limits(_auth=SimpleNamespace())
+
+    assert result == {"max_workspaces_per_user": 37}
+
+
+@pytest.mark.asyncio
+async def test_create_workspace_rejects_when_owned_limit_reached(monkeypatch):
+    monkeypatch.setattr(
+        workspaces_routes.config,
+        "MAX_WORKSPACES_PER_USER",
+        2,
+        raising=False,
+    )
+    auth = SimpleNamespace(user=SimpleNamespace(id="user-1"))
+    session = _FakeSession(owned_count=2)
+
+    with pytest.raises(HTTPException) as exc_info:
+        await workspaces_routes.create_workspace(
+            WorkspaceCreate(name="Extra", description=""),
+            session=session,
+            auth=auth,
+        )
+
+    assert exc_info.value.status_code == 409
+    assert "at most 2 workspaces" in exc_info.value.detail