Configuration + Model Scope + Scrape Candidate Query

What Was Built

Backend foundation for smart scrape recommendations: a configurable word count threshold (scrape_recommendation_threshold defaulting to 200), a Source.scrape_candidates scope that identifies active sources with low feed word counts and scraping disabled, and an Analytics::ScrapeRecommendations query object that wraps the scope with memoized candidates_count, candidate_ids, and candidate? methods for use by the dashboard and sources index.

Commits

Hash	Message
7785805	feat(config): add scrape_recommendation_threshold to ScrapingSettings
74ce1bc	feat(model): add Source.scrape_candidates scope
09389ae	feat(analytics): add ScrapeRecommendations query object

Tasks Completed

1. Add scrape_recommendation_threshold to ScrapingSettings -- Added DEFAULT_SCRAPE_RECOMMENDATION_THRESHOLD = 200 constant, attr_accessor, reset in reset!, and setter with normalize_numeric. 6 tests.
2. Add Source.scrape_candidates scope -- Class method that returns active sources with scraping disabled whose avg feed_word_count is below threshold. Uses subquery with HAVING AVG clause. 7 tests.
3. Create Analytics::ScrapeRecommendations query object -- Query class with candidates_count, candidate_ids, and candidate? methods. Memoized results. 6 tests.
4. Register autoload for ScrapeRecommendations -- Added autoload :ScrapeRecommendations to the Analytics module in lib/source_monitor.rb.

Files Modified

• lib/source_monitor/configuration/scraping_settings.rb -- Added threshold constant, attr_accessor, reset, setter
• app/models/source_monitor/source.rb -- Added scrape_candidates class method
• lib/source_monitor/analytics/scrape_recommendations.rb -- New query object
• lib/source_monitor.rb -- Added autoload declaration
• test/lib/source_monitor/configuration_test.rb -- 6 new tests
• test/models/source_monitor/source_test.rb -- 7 new tests
• test/lib/source_monitor/analytics/scrape_recommendations_test.rb -- 6 new tests (new file)

Deviations

• Tasks 3 and 4 were committed together since the autoload registration (Task 4) is required for the query object tests (Task 3) to resolve the class name.
• Test data creates ItemContent via SourceMonitor::ItemContent.create!(item: item) with content set on the Item, since feed_word_count is computed from item.content in a before_save callback on ItemContent.