Push-Erinnerungen: Widget, Backend-Scheduler, Pushover-Versand jede Minute

backend/src/db.js

@@ -313,6 +313,20 @@ if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='boa
   `);
 }
 
+// ── Push-Zeitplaner ───────────────────────────────────────────────────────────
+if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='push_schedules'").get()) {
+  db.exec(`
+    CREATE TABLE push_schedules (
+      id           INTEGER PRIMARY KEY AUTOINCREMENT,
+      user_id      INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      message      TEXT NOT NULL,
+      scheduled_at DATETIME NOT NULL,
+      sent         INTEGER NOT NULL DEFAULT 0,
+      created_at   DATETIME DEFAULT NULL
+    )
+  `);
+}
+
 // ── Link-Liste ────────────────────────────────────────────────────────────────
 if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='link_list'").get()) {
   db.exec(`