Add configurable Pi Web data directory

src/server/storage/projectStore.test.ts

@@ -0,0 +1,13 @@
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+import { projectStorePath } from "./projectStore.js";
+
+describe("projectStorePath", () => {
+  it("uses PI_WEB_DATA_DIR by default", () => {
+    expect(projectStorePath({ PI_WEB_DATA_DIR: "demo-data" }, "/tmp/pi-web")).toBe(join("/tmp/pi-web", "demo-data", "projects.json"));
+  });
+
+  it("uses PI_WEB_PROJECTS_FILE when configured", () => {
+    expect(projectStorePath({ PI_WEB_PROJECTS_FILE: "demo/projects.json" }, "/tmp/pi-web")).toBe(join("/tmp/pi-web", "demo/projects.json"));
+  });
+});