PLAN-01 Summary: dashboard-url-display-and-clickable-links

Status: COMPLETE

Added external_link_to(label, url, **options) public helper: renders <a> with target="_blank", rel="noopener noreferrer", and external-link SVG icon; returns plain label when URL is blank
Added domain_from_url(url) public helper: extracts hostname via URI.parse, returns nil for blank/invalid URLs
Added external_link_icon private helper: renders Heroicon external-link SVG with consistent Tailwind styling
7 new tests covering link rendering, nil/blank handling, custom CSS class, domain extraction, and invalid URL

Added :source_feed_url field to Dashboard::RecentActivity::Event struct
Updated fetch_log_sql to JOIN sources table and SELECT feed_url AS source_feed_url
Updated scrape_log_sql to JOIN items table and SELECT items.url AS item_url
Added NULL AS source_feed_url to scrape_log_sql and item_sql for UNION column alignment
Updated build_event to pass source_feed_url from query results
Added url_display (domain for fetches, full URL for scrapes) and url_href keys to presenter view models
Added source_domain private method for domain extraction
4 new tests: fetch with domain, fetch with nil URL, failure with URL, scrape with item URL

Added url_label public method: returns domain for fetch rows, item URL for scrape rows, nil for health checks
Added url_href public method: returns full feed_url for fetches, item URL for scrapes, nil for health checks
Added domain_from_feed_url private helper with URI parsing
6 new assertions for fetch, scrape, and health check row types

Dashboard _recent_activity.html.erb: added URL display line below event description, using external_link_to for clickable links
Logs index.html.erb: added URL display below subject column in table rows, using external_link_to for clickable links
Both use muted text-slate-400 styling with hover:text-blue-500 for visual consistency

sources/_row.html.erb: feed_url in source index row is now a clickable external link
sources/_details.html.erb: Feed URL header and Website URL in details hash are clickable external links
items/_details.html.erb: URL and Canonical URL in details hash are clickable external links

app/helpers/source_monitor/application_helper.rb (external_link_to, domain_from_url, external_link_icon)
lib/source_monitor/dashboard/recent_activity.rb (source_feed_url field)
lib/source_monitor/dashboard/queries/recent_activity_query.rb (JOIN sources/items, source_feed_url column)
lib/source_monitor/dashboard/recent_activity_presenter.rb (url_display, url_href, source_domain)
lib/source_monitor/logs/table_presenter.rb (url_label, url_href, domain_from_feed_url)
app/views/source_monitor/dashboard/_recent_activity.html.erb (URL display below description)
app/views/source_monitor/logs/index.html.erb (URL display below subject)
app/views/source_monitor/sources/_row.html.erb (clickable feed_url)
app/views/source_monitor/sources/_details.html.erb (clickable feed URL, website URL)
app/views/source_monitor/items/_details.html.erb (clickable URL, canonical URL)
test/helpers/source_monitor/application_helper_test.rb (7 new tests)
test/lib/source_monitor/dashboard/recent_activity_presenter_test.rb (4 new tests)
test/lib/source_monitor/logs/table_presenter_test.rb (6 new assertions)

6fde387 feat(04-dashboard-ux): add external_link_to and domain_from_url helpers
527bea1 feat(04-dashboard-ux): add URL info to recent activity query and presenter
cd6041e feat(04-dashboard-ux): add url_label and url_href to logs table presenter
5376b03 feat(04-dashboard-ux): show URL info in dashboard and logs views
51db3c6 feat(04-dashboard-ux): make external URLs clickable across views

REQ-22: Fetch log events display source domain; scrape log events display item URL; both success and failure events show URL info; logs table shows URL below subject column
REQ-23: All external URLs (feed URLs, website URLs, item URLs, canonical URLs) are clickable links opening in new tabs with external-link icon indicator

None. All tasks executed as specified in the plan.