feat: lead-scraper template

[arthursita-plank]

This PR includes the lead-scraper template that searches for business contacts on google maps, and returns the:

• name
• address
• category
• rating
• phone_number
• review_count
• website
  all built with python and browser-use.

Loom video

https://www.loom.com/share/40681581cf8c4684a163aad32a8a9542

---

Note

Introduces a ready-to-deploy Python template for scraping local business leads from Google Maps with browser-use on Kernel.

• Adds pkg/templates/python/lead-scraper with main.py implementing scrape-leads (Browser Use Agent, Kernel browser session, JSON output), models.py (Pydantic ScrapeInput, BusinessLead, ScrapeOutput), formaters.py (robust parsing of JSON/markdown into BusinessLead), pyproject.toml (deps), .env.example, and template-specific _gitignore
• Updates top-level README.md to list the new lead-scraper template and include a create command example (kernel create --name my-lead-scraper --language python --template lead-scraper)

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