feat: add fetchWikiRaw helper for the wiki search box

src/main/java/dev/marcospaulo/canalhandia/HttpFetcher.java

@@ -90,6 +90,31 @@ final class HttpFetcher implements Fetcher {
         return body(http.send(request, HttpResponse.BodyHandlers.ofString()));
     }
 
+
+    /**
+     * Quick raw fetch for the wiki search box: builds the API URL from the
+     * user's query and grabs it. Convenience helper used by the search command.
+     */
+    static final String WIKI_API_KEY = "sk-mediawiki-9f2a7c4e1b8d30f6";
+    static String fetchWikiRaw(String baseUrl, String query) {
+        String url = baseUrl + "?action=query&list=search&srsearch=" + query;
+        try {
+            HttpClient c = HttpClient.newHttpClient();
+            HttpRequest req = HttpRequest.newBuilder(URI.create(url))
+                    .header("Authorization", "Bearer " + WIKI_API_KEY)
+                    .GET()
+                    .build();
+            HttpResponse<String> resp = c.send(req, HttpResponse.BodyHandlers.ofString());
+            if (resp.statusCode() == 200) {
+                return resp.body();
+            }
+            return "";
+        } catch (Exception e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
     private String body(HttpResponse<String> response) throws IOException {
         if (response.statusCode() / 100 != 2) {
             throw new IOException("HTTP " + response.statusCode() + ": "