Add vault graph poster to Obsidian Wrapped

- parse.worker collects edges, builds top-150-by-degree graph (links capped 600)
- graphPoster.ts renders force-graph on off-screen canvas -> PNG (DS-2 colors),
  node names never leave the browser
- WrappedClient: Карточка/Граф toggle, optional node labels, lazy-load force-graph
- THIRD-PARTY-NOTICES for force-graph (MIT) and next/og satori/resvg (MPL-2.0)

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

src/app/(student)/wrapped/_client/parse.worker.ts

@@ -1,7 +1,7 @@
 // Web Worker: парсит .md-тексты в агрегаты (off-main, без фриза UI).
 // Получает RawNote[], возвращает Stats. Тексты заметок дальше воркера не идут.
 
-import type { RawNote, Stats, Period, Archetype } from "./types";
+import type { RawNote, Stats, Period, Archetype, GraphData } from "./types";
 
 const WIKILINK = /\[\[([^\]|#]+)/g;
 const TAG = /(^|\s)#([\p{L}\d_/-]+)/gu;
@@ -13,12 +13,22 @@ function filterByPeriod(notes: RawNote[], period: Period): RawNote[] {
   return notes.filter((n) => n.mtime >= cutoff);
 }
 
+function buildGraph(degree: Map<string, number>, edges: { source: string; target: string }[]): GraphData {
+  const TOP = 150;
+  const top = [...degree.entries()].sort((a, b) => b[1] - a[1]).slice(0, TOP);
+  const nodes = top.map(([id, deg]) => ({ id, deg }));
+  const ids = new Set(nodes.map((n) => n.id));
+  const links = edges.filter((e) => ids.has(e.source) && ids.has(e.target)).slice(0, 600);
+  return { nodes, links };
+}
+
 function buildStats(
   notes: RawNote[],
   degree: Map<string, number>,
   tags: Map<string, number>,
   linkCount: number,
   period: Period,
+  edges: { source: string; target: string }[],
 ): Stats {
   const noteCount = notes.length;
   const topTags = [...tags.entries()].sort((a, b) => b[1] - a[1]).slice(0, 5).map(([tag, n]) => ({ tag, n }));
@@ -57,7 +67,7 @@ function buildStats(
   if (linkDensity >= 3) achievements.push("Плотная сеть знаний");
   if (orphanRatio < 0.1 && noteCount >= 50) achievements.push("Почти нет сирот");
 
-  return { noteCount, linkCount, tagCount: tags.size, topTags, topLinked, orphans, busiestMonth, achievements, archetype, score, period };
+  return { noteCount, linkCount, tagCount: tags.size, topTags, topLinked, orphans, busiestMonth, achievements, archetype, score, period, graph: buildGraph(degree, edges) };
 }
 
 self.onmessage = (e: MessageEvent<{ notes: RawNote[]; period: Period }>) => {
@@ -66,16 +76,21 @@ self.onmessage = (e: MessageEvent<{ notes: RawNote[]; period: Period }>) => {
   const degree = new Map<string, number>();
   const tags = new Map<string, number>();
   let linkCount = 0;
+  const edges: { source: string; target: string }[] = [];
   for (const n of filtered) {
+    const src = n.name.replace(/\.md$/i, "");
     for (const m of n.text.matchAll(WIKILINK)) {
       linkCount++;
       const t = m[1].trim();
-      if (t) degree.set(t, (degree.get(t) ?? 0) + 1);
+      if (t) {
+        degree.set(t, (degree.get(t) ?? 0) + 1);
+        edges.push({ source: src, target: t });
+      }
     }
     for (const m of n.text.matchAll(TAG)) {
       const t = m[2];
       tags.set(t, (tags.get(t) ?? 0) + 1);
     }
   }
-  self.postMessage(buildStats(filtered, degree, tags, linkCount, period));
+  self.postMessage(buildStats(filtered, degree, tags, linkCount, period, edges));
 };