feat: add Zero schema with 6 table definitions and relationships

- Create zero/tables/inbox.ts (notifications)
- Create zero/tables/documents.ts (documents, search_source_connectors)
- Create zero/tables/chat.ts (new_chat_messages, chat_comments, chat_session_state)
- Create zero/schema.ts (combines tables, defines relationships, exports zql)
- Consolidate Zero type augmentations into types/zero.d.ts

surfsense_web/zero/schema.ts

@@ -0,0 +1,41 @@
+import { createSchema, createBuilder, relationships } from "@rocicorp/zero";
+import { chatCommentTable, chatSessionStateTable, newChatMessageTable } from "./tables/chat";
+import { documentTable, searchSourceConnectorTable } from "./tables/documents";
+import { notificationTable } from "./tables/inbox";
+
+const chatCommentRelationships = relationships(chatCommentTable, ({ one }) => ({
+	message: one({
+		sourceField: ["messageId"],
+		destSchema: newChatMessageTable,
+		destField: ["id"],
+	}),
+	parent: one({
+		sourceField: ["parentId"],
+		destSchema: chatCommentTable,
+		destField: ["id"],
+	}),
+}));
+
+const newChatMessageRelationships = relationships(newChatMessageTable, ({ many }) => ({
+	comments: many({
+		sourceField: ["id"],
+		destSchema: chatCommentTable,
+		destField: ["messageId"],
+	}),
+}));
+
+export const schema = createSchema({
+	tables: [
+		notificationTable,
+		documentTable,
+		searchSourceConnectorTable,
+		newChatMessageTable,
+		chatCommentTable,
+		chatSessionStateTable,
+	],
+	relationships: [chatCommentRelationships, newChatMessageRelationships],
+});
+
+export type Schema = typeof schema;
+
+export const zql = createBuilder(schema);