feat: 新增贴文reindex

backend/src/main/java/com/openisle/search/SearchReindexInitializer.java

@@ -0,0 +1,30 @@
+package com.openisle.search;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class SearchReindexInitializer implements CommandLineRunner {
+
+  private final OpenSearchProperties properties;
+  private final SearchReindexService searchReindexService;
+
+  @Override
+  public void run(String... args) {
+    if (!properties.isEnabled()) {
+      log.info("Search indexing disabled, skipping startup reindex.");
+      return;
+    }
+
+    if (!properties.isReindexOnStartup()) {
+      log.debug("Startup reindex disabled by configuration.");
+      return;
+    }
+
+    searchReindexService.reindexAll();
+  }
+}