Split shared RPC handler by domain

packages/shared/src/rpc/modelRpc.test.ts

@@ -0,0 +1,32 @@
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { activeCompanyId } from "../demoData.js";
+import { closeDatabase, type Db, initDatabase } from "../db/database.js";
+import { createRpcHandler } from "../db/rpcHandler.js";
+import { seedDatabase } from "../db/seed.js";
+
+describe("model RPC", () => {
+  let db: Db;
+  let rpc: ReturnType<typeof createRpcHandler>;
+
+  beforeEach(() => {
+    db = initDatabase({ inMemory: true });
+    seedDatabase(db);
+    rpc = createRpcHandler(db);
+  });
+
+  afterEach(() => {
+    closeDatabase(db);
+  });
+
+  it("rejects out-of-range model cell updates without throwing", async () => {
+    const result = await rpc("model.updateCell", {
+      companyId: activeCompanyId,
+      tab: "income",
+      row: 0,
+      col: 999,
+      value: "42",
+    });
+
+    expect(result).toEqual({ ok: true, data: { ok: false, affectedCells: [] } });
+  });
+});