Neue Linkliste unter Werkzeuge mit Teilen und Schnellzugriff-Integration

backend/src/db.js

@@ -279,6 +279,33 @@ for (const [k, v] of loginDefaults) {
     db.prepare('INSERT INTO admin_settings (key, value) VALUES (?, ?)').run(k, v);
 }
 
+// ── Link-Liste ────────────────────────────────────────────────────────────────
+if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='link_list'").get()) {
+  db.exec(`
+    CREATE TABLE link_list (
+      id          INTEGER PRIMARY KEY AUTOINCREMENT,
+      user_id     INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      title       TEXT NOT NULL,
+      url         TEXT NOT NULL,
+      icon        TEXT NOT NULL DEFAULT '🔗',
+      description TEXT NOT NULL DEFAULT '',
+      created_at  DATETIME DEFAULT NULL
+    )
+  `);
+}
+if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='link_list_shares'").get()) {
+  db.exec(`
+    CREATE TABLE link_list_shares (
+      id          INTEGER PRIMARY KEY AUTOINCREMENT,
+      link_id     INTEGER NOT NULL REFERENCES link_list(id) ON DELETE CASCADE,
+      shared_by   INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      shared_with INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      created_at  DATETIME DEFAULT NULL,
+      UNIQUE(link_id, shared_with)
+    )
+  `);
+}
+
 // ── Kalkulator-Shares ─────────────────────────────────────────────────────────
 if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='calculation_shares'").get()) {
   db.exec(`