Overhaul RSS feed widget: persistence, multi-feed management, search, bookmarks

- Add rss_feeds + rss_items tables with indexes and HN default seed
- Add 5-min background RSS sync loop in monitor.js with 90-day prune
- New /api/rss/feeds route for feed CRUD with immediate fetch on add
- Rewrite /api/rss route with search, feed filter, pagination, read/bookmark PATCH
- Full NewsFeed component rewrite: feed manager, search bar, filter pills,
  read/unread tracking, bookmarks, favicons, auto-refresh with new items badge
- Remove placeholder widget, NewsFeed now spans 4 cols / 3 rows
- Add rss-parser deps to Dockerfile for standalone monitor

monitor.js

@@ -1,5 +1,6 @@
 const sqlite3 = require('sqlite3');
 const { open } = require('sqlite');
+const RSSParser = require('rss-parser');
 // Node 18+ has global fetch built-in
 
 const DEFAULT_SERVICES = [
@@ -42,6 +43,78 @@ async function seedDefaults(db) {
     }
 }
 
+async function setupRssTables(db) {
+    await db.exec(`
+    CREATE TABLE IF NOT EXISTS rss_feeds (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      url TEXT NOT NULL UNIQUE,
+      last_fetched DATETIME,
+      created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+    );
+    CREATE TABLE IF NOT EXISTS rss_items (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      feed_id INTEGER NOT NULL,
+      title TEXT NOT NULL,
+      link TEXT NOT NULL UNIQUE,
+      pub_date DATETIME,
+      creator TEXT,
+      snippet TEXT,
+      read INTEGER DEFAULT 0,
+      bookmarked INTEGER DEFAULT 0,
+      created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+    );
+    CREATE INDEX IF NOT EXISTS idx_rss_items_feed ON rss_items(feed_id);
+    CREATE INDEX IF NOT EXISTS idx_rss_items_pubdate ON rss_items(pub_date DESC);
+  `);
+
+    // Seed default HN feed
+    const count = await db.get('SELECT COUNT(*) as cnt FROM rss_feeds');
+    if (count.cnt === 0) {
+        await db.run(
+            'INSERT INTO rss_feeds (name, url) VALUES (?, ?)',
+            'Hacker News', 'https://news.ycombinator.com/rss'
+        );
+        console.log('Seeded default RSS feed (Hacker News)');
+    }
+}
+
+async function syncRssFeeds(db) {
+    const parser = new RSSParser({ timeout: 5000 });
+    const feeds = await db.all('SELECT * FROM rss_feeds');
+
+    for (const feed of feeds) {
+        try {
+            const parsed = await parser.parseURL(feed.url);
+            for (const item of parsed.items || []) {
+                if (!item.title || !item.link) continue;
+                await db.run(
+                    `INSERT OR IGNORE INTO rss_items (feed_id, title, link, pub_date, creator, snippet)
+                     VALUES (?, ?, ?, ?, ?, ?)`,
+                    feed.id,
+                    item.title,
+                    item.link,
+                    item.pubDate || item.isoDate || null,
+                    item.creator || item.author || null,
+                    (item.contentSnippet || item.content || '').substring(0, 500) || null
+                );
+            }
+            await db.run(
+                'UPDATE rss_feeds SET last_fetched = ? WHERE id = ?',
+                new Date().toISOString(), feed.id
+            );
+            console.log(`RSS synced: ${feed.name} (${(parsed.items || []).length} items)`);
+        } catch (err) {
+            console.error(`RSS sync error for ${feed.name}:`, err.message);
+        }
+    }
+
+    // Prune items older than 90 days
+    try {
+        await db.run(`DELETE FROM rss_items WHERE created_at < datetime('now', '-90 days')`);
+    } catch (e) { }
+}
+
 async function monitor() {
     console.log('Starting monitoring loop...');
 
@@ -66,6 +139,10 @@ async function monitor() {
 
     await seedDefaults(db);
 
+    // Setup RSS tables and do initial sync
+    await setupRssTables(db);
+    syncRssFeeds(db); // initial sync, don't await to not block uptime start
+
     setInterval(async () => {
         console.log('Running checks...');
         const now = new Date().toISOString();
@@ -114,6 +191,9 @@ async function monitor() {
         } catch (e) { }
 
     }, 60000); // Run every minute
+
+    // RSS sync every 5 minutes
+    setInterval(() => syncRssFeeds(db), 5 * 60 * 1000);
 }
 
 monitor();