feat: add research labs and centers scraper

[NewdlDewdl]

Summary

Implements research scraper for issue #107

Changes

• Added scrapers/research.go to scrape UTD research listings
• Updated main.go to add -research flag
• Scrapes two sources:
  • https://www.utdallas.edu/research/facilities-centers/
  • https://labs.utdallas.edu/
• Outputs research.json with name, link, school, professors (for labs)

Testing

Successfully tested:

• Built without errors
• Scraped 195 total listings (56 facilities/centers + 139 labs)
• JSON output validated

Example Output

{
  "_id": "...",
  "name": "3D Studio",
  "link": "https://labs.utdallas.edu/3d-studio/",
  "school": "Harry W. Bass Jr. School of Arts, Humanities, and Technology",
  "professors": ["Andrew F. Scott", "Roxanne Minnish"],
  "source": "labs"
}

Closes #107

[NewdlDewdl]

Thanks for the review note (re: this being somewhat placeholder until we have a better research data source).

I pushed an update that makes the current approach more production-grade without pretending the upstream pages are high-quality:

• added retry/backoff + shared HTTP client
• normalized URLs + stable sorted output
• de-duped cross-listed entries by (name, link), merging school/source fields
• added unit tests for parsing/merging
• added an explicit code comment noting this is best-effort and likely to be rewritten once a better source exists

PR head is updated accordingly.