add cfde-opportunity-numbers fetcher

[seandavi]

Adds:

1. The function itself
2. Test
3. Documentation

[Copilot]

Pull Request Overview

This PR introduces a new utility to scrape CFDE funding opportunity numbers, along with associated tests and documentation.

• Implements cfde_opportunity_numbers() function
• Adds unit tests for return type and pattern matching
• Provides man page and updates NAMESPACE to export/import the new function

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
R/cfde_opportunity_numbers.R	Implements the HTML scraping logic to extract opportunity numbers
man/cfde_opportunity_numbers.Rd	Adds Rd documentation for cfde_opportunity_numbers()
tests/testthat/test_cfde_opportunity_numbers.R	Adds tests verifying output type and pattern matching
NAMESPACE	Exports the new function and imports necessary rvest functions

Comments suppressed due to low confidence (2)

tests/testthat/test_cfde_opportunity_numbers.R:1

• [nitpick] Currently there are no tests covering the url parameter behavior (e.g., custom URLs or error handling). Consider adding tests for non-default URLs or simulating missing elements to improve coverage.

test_that("cfde_opportunity_numbers returns a character vector", {

NAMESPACE:39

• [nitpick] Since the code uses rvest:: prefixes, these manual importFrom(rvest,…) entries are redundant. Either remove the imports or switch to unqualified calls for consistency.

importFrom(rvest,html_attr)