fix(in-app-help): in-app help buttons not pointing to the right page

src/public/app/widgets/floating_buttons/help_button.spec.ts

@@ -0,0 +1,37 @@
+import { describe, expect, it } from "vitest";
+import { byBookType, byNoteType } from "./help_button.js";
+import fs from "fs";
+import type { NoteMetaFile } from "../../../../services/meta/note_meta.js";
+import type NoteMeta from "../../../../services/meta/note_meta.js";
+
+describe("Help button", () => {
+    it("All help notes are accessible", () => {
+        function getNoteIds(item: NoteMeta | NoteMetaFile): string[] {
+            const items = [];
+
+            if ("noteId" in item && item.noteId) {
+                items.push(item.noteId);
+            }
+
+            const children = "files" in item ? item.files : item.children;
+            for (const child of children ?? []) {
+                items.push(getNoteIds(child));
+            }
+            return items.flat();
+        }
+
+        const allHelpNotes = [
+            ...Object.values(byNoteType),
+            ...Object.values(byBookType)
+        ].filter((noteId) => noteId) as string[];
+
+        const meta: NoteMetaFile = JSON.parse(fs.readFileSync("src/public/app/doc_notes/en/User Guide/!!!meta.json", "utf-8"));
+        const allNoteIds = new Set(getNoteIds(meta));
+
+        for (const helpNote of allHelpNotes) {
+            if (!allNoteIds.has(helpNote)) {
+                expect.fail(`Help note with ID ${helpNote} does not exist in the in-app help.`);
+            }
+        }
+    });
+});