Add support for viewing individual public Station Diary entries. Adds a new route for /station-diary/:callsign/entry/:id, a Stationdiary::entry controller method with caching (per-call sign + entry + cache version, 86400s TTL), and a Note model method get_public_station_diary_entry() that loads images and optional QSO summaries/lists. Update public_index view to link entry titles to their permalink and include entry IDs in article IDs, and update RSS feed to use the entry permalink/guid. Also include small CSS tweaks for entry title links.
Strip empty <p><br></p> tags and remove stray <br> between paragraphs in station diary views. public_index.php: after processing image shortcodes, remove empty paragraph placeholders and collapse <br> placed between </p> and <p>. rss.php: process image shortcodes for each entry (using $entry->images ?? []), clean the note content the same way, and output the cleaned content in the RSS <description>. This prevents extraneous blank lines and redundant breaks in rendered HTML and RSS feeds.
Controller: pass a 'feed_url' value into the RSS view (site_url for the feed). RSS view: compute the current request URL (respecting HTTPS) and use it for the atom:link self href. Public view: load Google Fonts (Merriweather & Lora), add preconnect hints, switch typography to the new fonts, increase line-height and adjust font-weights/sizes for headings and body to improve readability.
Introduce public Station Diary functionality: add global config flag, routes, controller, model changes, views and DB migrations. New migrations (252-254) add is_public/include_qso_summary, diary_images table and logbook_id on notes. Notes model updated to handle public flags, diary images, qso summaries, caching (per-user cache version), and helper methods for listing/counting public diary entries. New Stationdiary controller serves paginated public pages and RSS feed with caching. Notes controller updated to handle image uploads, attach images to diary entries, and provide an AJAX endpoint to delete images. Views updated to support public visibility options, logbook selector, image upload UI and Quill editor assets; routes and migration version bumped accordingly. Includes file upload example added to uploads/diary.
