fix(smzdm): navigate to search results page directly instead of deprecated ajax API

[ylongw]

Problem

opencli smzdm search always returns empty results because the old adapter called search.smzdm.com/ajax/?c=<channel>&s=<q> which now returns 404.

Root Cause

The /ajax/ endpoint has been deprecated/removed. Any HTTP request to it (including with credentials) returns 404, so the adapter silently falls through and returns [].

Fix

Navigate directly to the search results page:

https://search.smzdm.com/?c=home&s=<keyword>&v=b

Then scrape li.feed-row-wide elements from the rendered DOM — the same selectors the old adapter used for parsing, so no selector changes needed.

Also simplified from async IIFE (with fetch) to sync IIFE since all data is available in the DOM after page load.

Test

opencli smzdm search --keyword A7M5 --limit 5

Before: []

After:

┌──────┬──────────────────────────────────────────────┬─────────┬────────────┬──────────┬────────────────────────────────────┐
│ Rank │ Title                                        │ Price   │ Mall       │ Comments │ Url                                │
├──────┼──────────────────────────────────────────────┼─────────┼────────────┼──────────┼────────────────────────────────────┤
│ 1    │ 索尼 A7M5/a7V 全画幅微单相机                 │ 16667元 │ 拼多多     │ 2        │ https://www.smzdm.com/p/170164055/ │
│ 2    │ 索尼 Alpha7 V A7M5 新基准全画幅微单相机       │ 17999元 │ 天猫精选   │ 0        │ https://www.smzdm.com/p/170605199/ │
│ 3    │ 索尼 Alpha 7 V 全画幅 无反相机 单机身         │ 17999元 │ 京东       │ 0        │ https://www.smzdm.com/p/170563521/ │
│ 4    │ 索尼 ILCE-7M5 A7M5/a7V 全画幅微单摄影相机    │ 16899元 │ 拼多多     │ 2        │ https://www.smzdm.com/p/169382065/ │