A logo drawn from the radio's screen, to app icon guidelines (#55)

The 2004 icon is a whole radio on a transparent background and not
square, so the tab icon was padded and iOS painted the home-screen icon
on white. web/logo.svg is the radio's screen alone, its tuning scale and
orange needle, laid out as Apple's app icon guidelines ask: opaque and
full-bleed (the system cuts its own corners), a gradient background and
flat foreground layers with hard edges, no highlights or shadows of its
own, nothing thin enough to vanish at 32px. Each layer is a <g>, ready to
split out for Icon Composer. web/logo-dark.svg is the same layers
recoloured.

favicon.png (128) and apple-touch-icon.png (180) are renders of it. The
pages show it from /logo.svg, served outside the auth layer for the
sign-in page, with an app icon's rounded corners. The 2004 icon stays at
/icon.png for anything outside that links to it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/index.html

@@ -34,7 +34,7 @@
 <div id="shell">
   <aside id="sidebar">
     <div class="brand">
-      <img class="logo" src="/icon.png" alt="iPodderX" title="The original iPodderX icon, 2004"><h1>iPodderX</h1>
+      <img class="logo" src="/logo.svg" alt="iPodderX"><h1>iPodderX</h1>
     </div>
     <div class="searchwrap"><input type="search" id="feedFilter" placeholder="Filter feeds…"></div>
     <div id="feedlist"></div>