Feature/url tracking params cleaner

[DavyJones2010]

Summary

Remove common tracking parameters from URLs when exporting as Markdown.

Problem

Copied URLs often contain tracking parameters that make Markdown links unnecessarily long:

• https://zhuanlan.zhihu.com/p/xxx?utm_source=weibo&utm_medium=zhihu
• https://aliyun.com/product?spm=5176.xxx

Solution

Added a URL cleaner module that removes tracking parameters before exporting.

Supported parameters (15+):

• Alibaba: spm, scm
• Google Analytics: utm_source, utm_medium, utm_campaign, utm_term, utm_content
• Social: fbclid, twclid, ttclid
• Ads: gclid, gclsrc, msclkid
• Others: _ga, _gl, mc_cid, mc_eid

Changes

• New: src/lib/url-cleaner.ts - URL cleaning utility
• Modified: src/services/link-export-service.ts - Integrate URL cleaner
• Modified: src/services/tab-export-service.ts - Integrate URL cleaner
• New: test/url-cleaner.test.ts - 25 test cases

Testing

All 120 unit tests pass ✅

Tests

• Chrome stable (macOS)
• Firefox stable (macOS)
• Chrome stable (Windows)
• Firefox stable (Windows)

Optional:

• Chrome beta (macOS)
• Firefox beta (macOS)
• Chrome beta (Windows)
• Firefox beta (Windows)

AI Disclosure

• I used coding agents to create this patch. I understand and am responsible for all the code it generates.
• I did not use any coding agent to create this patch. I am responsible for all the code I wrote.