修復 -s (搜尋關鍵字) 功能 / Fix -s (Search Keyword) Functionality

[LayorX]

目前使用 -s <keyword> 參數時，程式似乎沒有根據關鍵字正確篩選出相關的影片。抓取到的內容可能與未使用 -s 參數時相同，或是完全不相關。

初步 Issue 分析：

1. API 限制: Threads 的內部 GraphQL API 可能不直接支援或公開關鍵字搜尋功能。我們攔截到的請求可能只是通用的「推薦內容」Feed，而 -s 參數沒有被正確地轉換成 API 查詢的一部分。
2. 參數注入失敗: scraper.py 中處理 -s 參數的邏輯可能存在問題，導致關鍵字沒有被正確地注入到 selenium-wire 攔截或修改的請求中。需要檢查將命令列參數傳遞到爬蟲模組的整個流程。

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Currently, when using the -s <keyword> parameter, the program does not seem to correctly filter for relevant videos based on the keyword. The fetched content might be the same as when the -s parameter is not used, or it could be completely irrelevant.

Preliminary Issue Analysis:

1. API Limitation: The internal GraphQL API of Threads may not directly support or expose a keyword search feature. The requests we intercept might just be for the generic "recommended content" feed, and the -s parameter is not being correctly translated into a part of the API query.
2. Parameter Injection Failure: There might be an issue with the logic in scraper.py that handles the -s parameter, causing the keyword not to be correctly injected into the requests intercepted or modified by selenium-wire. The entire flow of passing the command-line parameter to the scraper module needs to be reviewed.