Personalize starter site identity and homepage for undergraduate portfolio use

[Copilot]

Summary

This repo was still in default al-folio demo state, while the goal is a personal undergraduate website similar to the referenced student site. This PR replaces template identity/content with student-focused defaults and removes demo feed/comment wiring that makes a fresh personal site look pre-populated.

• Site identity + deployment defaults (_config.yml)
  • Set personal-facing title, first_name, description, and keywords
  • Switched url to https://spokiio.github.io and cleared baseurl for user-site root hosting
  • Renamed blog defaults (blog_name, blog_description)
• Demo content cleanup (_config.yml)
  • Cleared disqus_shortname
  • Removed sample external feed/posts (external_sources: [])
• Homepage/about rewrite (_pages/about.md)
  • Replaced placeholder subtitle/profile metadata/body copy with undergraduate profile text
  • Disabled starter demo blocks not relevant to a new personal profile (selected_papers, announcements, latest posts)

# _config.yml
url: https://spokiio.github.io
baseurl:
external_sources: []
disqus_shortname:

Ownership Routing

• I confirmed this PR targets the correct repo based on docs/BOUNDARIES.md.
• This PR only changes starter-owned scope (al-folio) or I am porting a routed change and linked the owning repo issue/PR.

Owning repo (if not starter):
Related issue/PR:

Plugin Ecosystem (if applicable)

• Not applicable
• This PR proposes a plugin for featured-only listing.
• This PR proposes a plugin for bundled starter inclusion.

If plugin-related, provide:

• Plugin repo URL:
• Gem name:
• Jekyll plugin id:
• Compatibility (al_folio_min/al_folio_max):
• Demo page/post path:
• Maintainer contact:

Starter Wiring Changes

• Not applicable
• Updated Gemfile dependency wiring.
• Updated _config.yml plugin activation/config.
• Updated _data/featured_plugins.yml metadata.

Validation

• npm ci
• bundle exec jekyll build
• npm run lint:prettier
• npm run lint:style-contract
• Integration tests (test/integration_*.sh) as needed
• Visual tests (npm run test:visual) as needed

Notes

Compatibility, migration implications, and follow-ups:

• bundle exec jekyll build was attempted but failed in this sandbox due outbound DNS/network resolution for external Twitter embed host (publish.twitter.com), not due config/content syntax.
• Follow-up personalization still expected (social handles, projects/posts/publications content, avatar replacement).

Original prompt

this is my firsy repository. i'm a undergraduate student and i want to make it just like this one https://jiaxuanzou0714.github.io/