fix:优化匹配规则

apps/backend/src/models/notification-rule.model.ts

@@ -0,0 +1,31 @@
+import mongoose, { type InferSchemaType } from 'mongoose';
+
+const notificationRuleSchema = new mongoose.Schema(
+  {
+    name: { type: String, required: true },
+    enabled: { type: Boolean, default: true },
+    priority: { type: Number, default: 50 },
+
+    // Match scope
+    packageName: { type: String }, // optional: limit to a package/channel
+    keywords: { type: [String], default: [] }, // any keyword match in title/body
+    pattern: { type: String }, // optional regex string
+
+    // Action
+    action: { type: String, enum: ['record', 'ignore'], default: 'record' },
+    category: { type: String }, // override category when action is record
+    type: { type: String, enum: ['income', 'expense'] }, // override type
+    amountPattern: { type: String }, // custom regex for extracting amount
+
+    // Telemetry
+    matchCount: { type: Number, default: 0 },
+    lastMatchedAt: { type: Date }
+  },
+  { timestamps: true }
+);
+
+export type NotificationRuleDocument = InferSchemaType<typeof notificationRuleSchema>;
+
+export const NotificationRuleModel =
+  mongoose.models.NotificationRule ?? mongoose.model('NotificationRule', notificationRuleSchema);
+