feat: implement authenticated feed support across worker and web app

Wire up the full authenticated feeds pipeline:
- Worker resolves credentials from Supabase Vault for authenticated feeds
- Worker sets owner_id on entries for per-user dedup
- query_param auth now parses name=value format
- Add-feed dialog shows auth type + credential fields for pro/developer
- Subscribe mutation passes credentials to RPC
- Sidebar and settings show [auth] indicator for authenticated feeds

1 files changed, 6 insertions, 0 deletions

diff --git a/apps/web/app/reader/_components/sidebar-content.tsx b/apps/web/app/reader/_components/sidebar-content.tsx
index 401d203..e43451d 100644
--- a/apps/web/app/reader/_components/sidebar-content.tsx
+++ b/apps/web/app/reader/_components/sidebar-content.tsx
@@ -295,6 +295,9 @@ export function SidebarContent() {
                           <span className={classNames("truncate", showFeedFavicons && "ml-2")}>
                             {displayNameForSubscription(subscription)}
                           </span>
+                          {subscription.feedVisibility === "authenticated" && (
+                            <span className="ml-1 shrink-0 text-text-dim" title="authenticated feed">&#128274;</span>
+                          )}
                           {subscription.feedType === "podcast" && (
                             <span className="ml-1 shrink-0 text-text-dim" title="podcast">&#9835;</span>
                           )}
@@ -338,6 +341,9 @@ export function SidebarContent() {
                     <span className={classNames("truncate", showFeedFavicons && "ml-2")}>
                       {displayNameForSubscription(subscription)}
                     </span>
+                    {subscription.feedVisibility === "authenticated" && (
+                      <span className="ml-1 shrink-0 text-text-dim" title="authenticated feed">&#128274;</span>
+                    )}
                     {subscription.feedType === "podcast" && (
                       <span className="ml-1 shrink-0 text-text-dim" title="podcast">&#9835;</span>
                     )}