feat: bases

Add the bases feature: formula engine package, grid/table UI, and the base-embed editor extension, with supporting client and server changes.

apps/client/src/ee/base/pages/base-page.tsx

@@ -0,0 +1,35 @@
+import { useParams } from "react-router-dom";
+import { Container, Title, Text, Stack } from "@mantine/core";
+import { BaseView } from "@/ee/base/components/base-view";
+import { useBaseQuery } from "@/ee/base/queries/base-query";
+import { useHasFeature } from "@/ee/hooks/use-feature";
+import { Feature } from "@/ee/features";
+
+export default function BasePage() {
+  const { pageId } = useParams<{ pageId: string }>();
+  const hasBases = useHasFeature(Feature.BASES);
+  const { data: base } = useBaseQuery(pageId ?? "");
+
+  if (!pageId) {
+    return (
+      <Stack align="center" p="xl">
+        <Text c="dimmed">No base ID provided</Text>
+      </Stack>
+    );
+  }
+
+  return (
+    <Container
+      fluid
+      p="md"
+      style={{ height: "calc(100vh - 60px)", display: "flex", flexDirection: "column" }}
+    >
+      {base && (
+        <Title order={3} mb="xs">
+          {base.icon ? `${base.icon} ` : ""}{base.name}
+        </Title>
+      )}
+      <BaseView pageId={pageId} editable={hasBases && (base?.canEdit ?? false)} />
+    </Container>
+  );
+}