feat(processor): 实现批量写库容错机制并添加失败统计

添加数据库批量写入失败处理逻辑，当批量写入失败时自动切换为逐条写入
记录失败数据并统计失败数量，同时更新相关测试和统计模块
符合新增的批量写库容错需求规范

src/stats/statsManager.js

@@ -1,6 +1,6 @@
 class StatsCounters {
   constructor() {
-    this._minuteBuf = new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 3);
+    this._minuteBuf = new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4);
     this._minute = new BigInt64Array(this._minuteBuf);
   }
 
@@ -22,11 +22,18 @@ class StatsCounters {
     Atomics.add(this._minute, 2, v);
   }
 
+  incDbWriteFailed(n = 1) {
+    const v = BigInt(Math.max(0, Number(n) || 0));
+    if (v === 0n) return;
+    Atomics.add(this._minute, 3, v);
+  }
+
   snapshotAndResetMinute() {
     const dbWritten = Atomics.exchange(this._minute, 0, 0n);
     const filtered = Atomics.exchange(this._minute, 1, 0n);
     const kafkaPulled = Atomics.exchange(this._minute, 2, 0n);
-    return { dbWritten, filtered, kafkaPulled };
+    const dbWriteFailed = Atomics.exchange(this._minute, 3, 0n);
+    return { dbWritten, filtered, kafkaPulled, dbWriteFailed };
   }
 }
 
@@ -50,6 +57,7 @@ class StatsReporter {
     this.stats = stats;
     this._timer = null;
     this._running = false;
+    this._lastFlushMinute = null;
   }
 
   start() {
@@ -68,9 +76,16 @@ class StatsReporter {
 
   flushOnce() {
     if (!this.redis?.isEnabled?.()) return;
-    const { dbWritten, filtered, kafkaPulled } = this.stats.snapshotAndResetMinute();
+    const now = Date.now();
+    const minuteKey = Math.floor(now / 60_000);
+    if (this._lastFlushMinute === minuteKey) {
+      return;
+    }
+    const { dbWritten, filtered, kafkaPulled, dbWriteFailed } = this.stats.snapshotAndResetMinute();
+    this._lastFlushMinute = minuteKey;
     const ts = formatTimestamp(new Date());
     this.redis.pushConsoleLog?.({ level: 'info', message: `[STATS] ${ts} 数据库写入量: ${dbWritten}条`, metadata: { module: 'stats' } });
+    this.redis.pushConsoleLog?.({ level: 'info', message: `[STATS] ${ts} 数据库写入失败量: ${dbWriteFailed}条`, metadata: { module: 'stats' } });
     this.redis.pushConsoleLog?.({ level: 'info', message: `[STATS] ${ts} 数据过滤量: ${filtered}条`, metadata: { module: 'stats' } });
     this.redis.pushConsoleLog?.({ level: 'info', message: `[STATS] ${ts} Kafka拉取量: ${kafkaPulled}条`, metadata: { module: 'stats' } });
   }