v1.1.0 — RSS feed, PWA, lesson comments, progress tracking + streaks

RSS Feed
- /feed.xml proxies the Anchor feed under the site's canonical domain
- Rewrites channel <link> and atom:link self-ref to the site URL
- Served with 30-min Cache-Control, reuses the existing episode cache

PWA
- vite-plugin-pwa installed; Workbox service worker auto-generated on build
- manifest.json inlined in vite.config.ts (name, icons, theme, standalone)
- pwa-192.png and pwa-512.png generated from existing book_icon.png
- StaleWhileRevalidate for /api/episodes and /api/questions; CacheFirst for images
- API, feed.xml, and uploads routes excluded from navigate fallback

Lesson Comments
- Import and wire StudySectionComments into ColossiansStudySectionPage
- Replaces the CommunityBoard in the Lesson Discussion section
- All routes and moderation already existed; only the render was missing

Progress Tracking + Streaks
- Mark-complete handler now records lastStudiedDate, currentStreak, longestStreak on the user record
- Streak increments on consecutive calendar days, resets on a gap
- /api/study-account/overview now returns streak fields
- Account page: 4-stat summary row (notes, streak 🔥, longest streak, member since)
- Per-study progress bars showing completedLessons/totalLessons with gold → green fill at 100%

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/routes/episodes.js

@@ -3,6 +3,7 @@ import { sanitizeUrl } from '../study-helpers.js'
 const RSS_FEED_URL = 'https://anchor.fm/s/11068d290/podcast/rss'
 let episodesCache = null
 let episodesCacheAt = 0
+let rawXmlCache = null
 const EPISODES_CACHE_TTL = 30 * 60 * 1000
 
 function extractCdata(raw) {
@@ -40,7 +41,7 @@ function parseRssItems(xml, limit = Infinity) {
   return items
 }
 
-async function fetchAllEpisodes() {
+export async function fetchAllEpisodes() {
   const now = Date.now()
   if (episodesCache && (now - episodesCacheAt) < EPISODES_CACHE_TTL) {
     return episodesCache
@@ -51,12 +52,18 @@ async function fetchAllEpisodes() {
   clearTimeout(timeout)
   if (!response.ok) throw new Error(`RSS fetch failed: ${response.status}`)
   const xml = await response.text()
+  rawXmlCache = xml
   const episodes = parseRssItems(xml)
   episodesCache = episodes
   episodesCacheAt = now
   return episodes
 }
 
+export async function fetchRawFeedXml() {
+  await fetchAllEpisodes()
+  return rawXmlCache
+}
+
 function toSpotifyEpisodeEmbedUrl(urlValue) {
   if (!urlValue) return ''
   try {