DeepSeek V4.1 Flash: native Bilderkennung, GLM/OpenRouter entfernt

- deepseek-flash als einziges Modell mit Vision, Preise aktualisiert
- OpenRouter/GLM samt Code, Config und Env-Variablen entfernt
- Legacy-Modell-IDs in Sessions werden automatisch migriert
- browse lädt Produktbilder lokal nach dashboards/ (Dedupe + Cleanup)
- Vision-Prompt: Workflow für visuelle Produktsuche, max. ~5 Screenshots

lib/tools.js

@@ -1,5 +1,6 @@
 const path = require('path');
 const fs = require('fs');
+const crypto = require('crypto');
 const { chromium } = require('playwright');
 
 const DASHBOARD_DIR = path.join(__dirname, '..', 'dashboards');
@@ -92,8 +93,76 @@ async function search(query, log) {
   return results;
 }
 
-/** Seite besuchen und lesbaren Text extrahieren. */
-async function browse(url, log) {
+const IMAGE_TYPES = { 'image/jpeg': 'jpg', 'image/png': 'png', 'image/webp': 'webp', 'image/gif': 'gif' };
+const MAX_IMAGE_BYTES = 4 * 1024 * 1024;
+const MAX_TOTAL_IMAGE_BYTES = 12 * 1024 * 1024;
+const MAX_IMAGES = 8;
+
+/**
+ * Extrahiert Produktbild-URLs (nur absolute http(s), ausreichend groß, dedupliziert).
+ * Läuft im Browser-Kontext der besuchten Seite.
+ */
+function collectImages() {
+  const images = [];
+  const seen = new Set();
+  for (const img of document.querySelectorAll('img')) {
+    const src = (img.currentSrc || img.src || '').split('#')[0];
+    if (!/^https?:/i.test(src) || seen.has(src)) continue;
+    const nw = img.naturalWidth || 0;
+    const nh = img.naturalHeight || 0;
+    const rect = img.getBoundingClientRect();
+    const w = nw || rect.width || img.width || 0;
+    const h = nh || rect.height || img.height || 0;
+    if (w < 120 || h < 120) continue;
+    seen.add(src);
+    images.push({ url: src, alt: (img.alt || '').trim().slice(0, 120) });
+    if (images.length >= 12) break;
+  }
+  return images;
+}
+
+/**
+ * Lädt extrahierte Bilder lokal in den Dashboards-Ordner, damit das Dashboard
+ * sie unabhängig von Hotlink-Schutz und ablaufenden CDN-URLs einbetten kann.
+ * Dateiname: <sessionId>-img-<hash>.<ext> – wird beim Session-Löschen mit entfernt.
+ */
+async function cacheImages(page, images, sessionId, log) {
+  if (!sessionId) return images;
+  fs.mkdirSync(DASHBOARD_DIR, { recursive: true });
+  const existingFiles = new Set(fs.readdirSync(DASHBOARD_DIR));
+  const out = [];
+  let total = 0;
+  for (const img of images) {
+    if (out.length >= MAX_IMAGES || total >= MAX_TOTAL_IMAGE_BYTES) break;
+    try {
+      const hash = crypto.createHash('sha1').update(img.url).digest('hex').slice(0, 12);
+      const known = [...existingFiles].find((f) => f.startsWith(`${sessionId}-img-${hash}.`));
+      if (known) {
+        out.push({ url: `/dashboards/${known}`, alt: img.alt });
+        continue;
+      }
+      const resp = await page.request.get(img.url, {
+        timeout: 15000,
+        headers: { Referer: page.url() },
+      });
+      const type = String(resp.headers()['content-type'] || '').split(';')[0].trim().toLowerCase();
+      const ext = IMAGE_TYPES[type];
+      if (!ext || !resp.ok()) continue;
+      const buf = await resp.body();
+      if (buf.length < 512 || buf.length > MAX_IMAGE_BYTES || total + buf.length > MAX_TOTAL_IMAGE_BYTES) continue;
+      const file = `${sessionId}-img-${hash}.${ext}`;
+      fs.writeFileSync(path.join(DASHBOARD_DIR, file), buf);
+      existingFiles.add(file);
+      total += buf.length;
+      out.push({ url: `/dashboards/${file}`, alt: img.alt });
+    } catch {}
+  }
+  log?.(`Produktbilder lokal gespeichert: ${out.length}`);
+  return out;
+}
+
+/** Seite besuchen und lesbaren Text + Produktbilder (lokal gespeichert) extrahieren. */
+async function browse(url, log, opts = {}) {
   return withPage(url, async (page) => {
     const nav = await goto(page, url);
     if (!nav.ok) return { nav, error: 'Seite konnte nicht geladen werden' };
@@ -101,10 +170,12 @@ async function browse(url, log) {
     const data = await page.evaluate(() => {
       const title = document.title || '';
       const text = (document.body ? document.body.innerText : '').replace(/\s+\n/g, '\n');
-      return { title, text: text.slice(0, 15000) };
+      return { title, text: text.slice(0, 6000) };
     });
-    log?.(`Besuche ${url} -> ${data.title}`);
-    return { nav, title: data.title, text: data.text };
+    const extracted = await page.evaluate(collectImages);
+    const images = await cacheImages(page, extracted, opts.sessionId, log);
+    log?.(`Besuche ${url} -> ${data.title} (${images.length} Bilder lokal)`);
+    return { nav, title: data.title, images, text: data.text };
   });
 }