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>

prisma/schema.prisma

@@ -45,6 +45,27 @@ model User {
   questions            StudentQuestion[]
   closedQuestions      StudentQuestion[]       @relation("QuestionClosedBy")
   questionMessages     StudentQuestionMessage[]
+  wrappedRuns          WrappedRun[]
+}
+
+// Obsidian Wrapped — агрегаты прогона (БЕЗ имён/текстов заметок; обработка волта 100% client-side)
+model WrappedRun {
+  id         String   @id @default(cuid())
+  userId     String
+  period     String   @default("year") // year | quarter | all
+  noteCount  Int
+  linkCount  Int
+  tagCount   Int
+  topTag     String?
+  archetype  String?  // architect | gardener | librarian | pragmatist
+  score      Int      @default(0) // 0..100
+  shareToken String   @unique // публичная ссылка /share/wrapped/[token]
+  createdAt  DateTime @default(now())
+  updatedAt  DateTime @updatedAt
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId])
 }
 
 model Session {