Add Obsidian Wrapped feature (inside-LMS, client-side vault parsing)

- WrappedRun Prisma model + migration (aggregates only, no note names/text)
- /wrapped authed route: FSA + webkitdirectory + drag-drop reader, Web Worker parser
- archetype + score heuristics, ДС-2 result card
- POST /api/wrapped/run (userId from session), public /share/wrapped/[token]
- next/og OG image (Satori+resvg-wasm, alpine-safe) + Fira Mono ttf
- middleware: /share/wrapped public

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/app/(student)/wrapped/_client/reader.ts

@@ -0,0 +1,79 @@
+// Чтение хранилища в браузере — три пути ввода, все → RawNote[].
+// Содержимое заметок остаётся в браузере (приватность-моат).
+
+import type { RawNote } from "./types";
+
+const SKIP = ["/.obsidian/", "/.trash/", "/.git/"];
+function isMd(path: string): boolean {
+  return path.toLowerCase().endsWith(".md") && !SKIP.some((s) => path.includes(s));
+}
+
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+export function supportsFSA(): boolean {
+  return typeof window !== "undefined" && "showDirectoryPicker" in window;
+}
+
+// 1. File System Access API (Chromium: Chrome/Edge/Brave)
+export async function readViaFSA(): Promise<RawNote[]> {
+  const dir: any = await (window as any).showDirectoryPicker();
+  const notes: RawNote[] = [];
+  async function walk(handle: any, prefix: string): Promise<void> {
+    for await (const [name, h] of handle.entries()) {
+      const path = prefix + "/" + name;
+      if (h.kind === "directory") {
+        if (name.startsWith(".")) continue;
+        await walk(h, path);
+      } else if (isMd(path)) {
+        const file: File = await h.getFile();
+        notes.push({ name, text: await file.text(), ctime: file.lastModified, mtime: file.lastModified });
+      }
+    }
+  }
+  await walk(dir, "");
+  return notes;
+}
+
+// 2. <input type="file" webkitdirectory> (Safari / Firefox)
+export async function readViaInput(files: FileList): Promise<RawNote[]> {
+  const notes: RawNote[] = [];
+  for (const file of Array.from(files)) {
+    const path = (file as any).webkitRelativePath || file.name;
+    if (!isMd(path)) continue;
+    notes.push({ name: file.name, text: await file.text(), ctime: file.lastModified, mtime: file.lastModified });
+  }
+  return notes;
+}
+
+// 3. drag-drop папки (webkitGetAsEntry)
+export async function readViaDrop(items: DataTransferItemList): Promise<RawNote[]> {
+  const notes: RawNote[] = [];
+  const roots: any[] = [];
+  for (const item of Array.from(items)) {
+    const entry = (item as any).webkitGetAsEntry?.();
+    if (entry) roots.push(entry);
+  }
+  async function readEntry(entry: any, prefix: string): Promise<void> {
+    const path = prefix + "/" + entry.name;
+    if (entry.isDirectory) {
+      if (entry.name.startsWith(".")) return;
+      const reader = entry.createReader();
+      const children: any[] = await new Promise((resolve) => {
+        const all: any[] = [];
+        const readBatch = () =>
+          reader.readEntries((batch: any[]) => {
+            if (!batch.length) return resolve(all);
+            all.push(...batch);
+            readBatch();
+          });
+        readBatch();
+      });
+      for (const c of children) await readEntry(c, path);
+    } else if (isMd(path)) {
+      const file: File = await new Promise((resolve, reject) => entry.file(resolve, reject));
+      notes.push({ name: entry.name, text: await file.text(), ctime: file.lastModified, mtime: file.lastModified });
+    }
+  }
+  for (const e of roots) await readEntry(e, "");
+  return notes;
+}