feat: parse <author> from From header in RSS items

Parse the From header into name + email parts so the feed library
renders proper RFC 2822 format (email (Name)) in <author> elements.
Also passes feedId to the generator so item links can point to the
upcoming /entries/:feedId/:receivedAt route.

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

src/routes/rss.ts

@@ -62,7 +62,7 @@ export async function handle(c: Context): Promise<Response> {
 
     // Generate the RSS feed XML
     const baseUrl = `https://${env.DOMAIN}`;
-    const rssXml = generateRssFeed(feedConfig, emailsData, baseUrl);
+    const rssXml = generateRssFeed(feedConfig, emailsData, baseUrl, feedId);
 
     // Return the RSS feed with appropriate content type
     return new Response(rssXml, {

src/utils/feed-generator.ts

@@ -1,6 +1,18 @@
 import { Feed } from "feed";
 import { FeedConfig, EmailData } from "../types";
 
+function parseFromAddress(from: string): { name: string; email?: string } {
+  const match = from.match(/^(.*?)\s*<([^>]+)>\s*$/);
+  if (match) {
+    return { name: match[1].trim() || match[2], email: match[2].trim() };
+  }
+  const emailOnly = from.match(/^[^\s@]+@[^\s@]+\.[^\s@]+$/);
+  if (emailOnly) {
+    return { email: from.trim(), name: from.trim() };
+  }
+  return { name: from.trim() };
+}
+
 /**
  * Generate an RSS feed from a list of emails
  */
@@ -8,6 +20,7 @@ export function generateRssFeed(
   feedConfig: FeedConfig,
   emails: EmailData[],
   baseUrl: string,
+  feedId?: string,
 ): string {
   // Create a new feed
   const feed = new Feed({
@@ -34,18 +47,17 @@ export function generateRssFeed(
   for (const email of emails) {
     const date = new Date(email.receivedAt);
     const uniqueId = `${email.receivedAt}-${Buffer.from(email.subject).toString("base64").substring(0, 10)}`;
+    const entryLink = feedId
+      ? `${baseUrl}/entries/${feedId}/${email.receivedAt}`
+      : `${baseUrl}/emails/${uniqueId}`;
 
     feed.addItem({
       title: email.subject,
       id: uniqueId,
-      link: `${baseUrl}/emails/${uniqueId}`,
+      link: entryLink,
       description: email.content,
       content: email.content,
-      author: [
-        {
-          name: email.from,
-        },
-      ],
+      author: [parseFromAddress(email.from)],
       date: date,
     });
   }