Add SearchApi to search

Add support for engines, improve status code error

Remove changes in package, add engine to env params

Improve description in env example

Remove unnecessary empty line

Improve text

apps/api/src/search/index.ts

@@ -2,6 +2,7 @@ import { Logger } from "../../src/lib/logger";
 import { SearchResult } from "../../src/lib/entities";
 import { googleSearch } from "./googlesearch";
 import { fireEngineMap } from "./fireEngine";
+import { searchapi_search } from "./searchapi";
 import { serper_search } from "./serper";
 
 export async function search({
@@ -30,7 +31,16 @@ export async function search({
   timeout?: number;
 }): Promise<SearchResult[]> {
   try {
-    
+    if (process.env.SEARCHAPI_API_KEY) {
+      return await searchapi_search(query, {
+        num_results,
+        tbs,
+        filter,
+        lang,
+        country,
+        location
+      });
+    }
     if (process.env.SERPER_API_KEY) {
       return await serper_search(query, {
         num_results,