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

app/api/rss/route.ts

@@ -1,23 +1,76 @@
-import { NextResponse } from 'next/server';
-import Parser from 'rss-parser';
+import { NextRequest, NextResponse } from 'next/server';
+import { getDb } from '@/lib/db';
 
 export const dynamic = 'force-dynamic';
 
-export async function GET() {
-    const parser = new Parser();
-    try {
-        const feed = await parser.parseURL('https://news.ycombinator.com/rss');
+export async function GET(req: NextRequest) {
+    const { searchParams } = new URL(req.url);
+    const q = searchParams.get('q');
+    const feedId = searchParams.get('feed_id');
+    const bookmarked = searchParams.get('bookmarked');
+    const limit = parseInt(searchParams.get('limit') || '50', 10);
+    const offset = parseInt(searchParams.get('offset') || '0', 10);
 
-        const items = feed.items.slice(0, 10).map(item => ({
-            title: item.title,
-            link: item.link,
-            pubDate: item.pubDate,
-            creator: item.creator || 'Unknown',
-            contentSnippet: item.contentSnippet,
-        }));
+    const db = await getDb();
 
-        return NextResponse.json(items);
-    } catch (error) {
-        return NextResponse.json({ error: 'Failed to parse RSS' }, { status: 500 });
+    const conditions: string[] = [];
+    const params: (string | number)[] = [];
+
+    if (q) {
+        conditions.push('(i.title LIKE ? OR i.snippet LIKE ?)');
+        params.push(`%${q}%`, `%${q}%`);
     }
+    if (feedId) {
+        conditions.push('i.feed_id = ?');
+        params.push(parseInt(feedId, 10));
+    }
+    if (bookmarked === '1') {
+        conditions.push('i.bookmarked = 1');
+    }
+
+    const where = conditions.length > 0 ? `WHERE ${conditions.join(' AND ')}` : '';
+
+    const items = await db.all(
+        `SELECT i.*, f.name as feed_name, f.url as feed_url
+         FROM rss_items i
+         LEFT JOIN rss_feeds f ON f.id = i.feed_id
+         ${where}
+         ORDER BY i.pub_date DESC
+         LIMIT ? OFFSET ?`,
+        ...params, limit, offset
+    );
+
+    return NextResponse.json(items);
+}
+
+export async function PATCH(req: NextRequest) {
+    const body = await req.json();
+    const { id, read, bookmarked } = body;
+
+    if (!id) {
+        return NextResponse.json({ error: 'Item id is required' }, { status: 400 });
+    }
+
+    const db = await getDb();
+    const updates: string[] = [];
+    const params: (number)[] = [];
+
+    if (read !== undefined) {
+        updates.push('read = ?');
+        params.push(read ? 1 : 0);
+    }
+    if (bookmarked !== undefined) {
+        updates.push('bookmarked = ?');
+        params.push(bookmarked ? 1 : 0);
+    }
+
+    if (updates.length === 0) {
+        return NextResponse.json({ error: 'Nothing to update' }, { status: 400 });
+    }
+
+    params.push(id);
+    await db.run(`UPDATE rss_items SET ${updates.join(', ')} WHERE id = ?`, ...params);
+
+    const item = await db.get('SELECT * FROM rss_items WHERE id = ?', id);
+    return NextResponse.json(item);
 }