* feat(deeplink): support comma-separated multiple endpoints in URL
Allow importing multiple API endpoints via single endpoint parameter.
First URL becomes primary endpoint, rest are added as custom endpoints.
* feat(deeplink): add usage query fields to deeplink generator
Add form fields for usage query configuration in deeplink HTML generator:
- usageEnabled, usageBaseUrl, usageApiKey
- usageScript, usageAutoInterval
- usageAccessToken, usageUserId
* fix(deeplink): auto-infer homepage and improve multi-endpoint display
- Auto-infer homepage from primary endpoint when not provided
- Display multiple endpoints as list in import dialog (primary marked)
- Update deeplink parser in deplink.html to show multi-endpoint info
- Add test for homepage inference from endpoint
- Minor log format fix in live.rs
* fix(deeplink): use primary endpoint for usage script base_url
- Fix usage_script.base_url getting comma-separated string when multiple endpoints
- Add i18n support for primary endpoint label in DeepLinkImportDialog
Remove the skillsPath field from SkillRepo and Skill structs since
recursive scanning now automatically discovers skills in all directories.
Simplify the UI by removing the path input field.