fix(runtimes): use Simple Icons Google Gemini mark (MUL-2447)

Drop the hand-crafted aurora gradient approximation and inline the
canonical "Google Gemini" path from Simple Icons (CC0 1.0), rendered
in the Simple Icons brand color (#8E75B2). This matches the pattern
used by the other provider marks in this file (Claude/Codex from
Bootstrap Icons, etc.) instead of trying to manually approximate the
official multicolor wash from gemini.google.com (which paints via a
clipPath over an embedded raster).

Co-authored-by: multica-agent <github@multica.ai>

packages/views/runtimes/components/provider-logo.tsx

@@ -126,6 +126,18 @@ function KimiLogo({ className }: { className: string }) {
   );
 }
 
+// Gemini (Google) — official "Google Gemini" mark from Simple Icons
+// (simpleicons.org/icons/googlegemini.svg, CC0 1.0). Rendered in the
+// Simple Icons brand color (#8E75B2), matching the pattern used by the
+// other provider marks in this file.
+function GeminiLogo({ className }: { className: string }) {
+  return (
+    <svg viewBox="0 0 24 24" fill="#8E75B2" className={className}>
+      <path d="M11.04 19.32Q12 21.51 12 24q0-2.49.93-4.68.96-2.19 2.58-3.81t3.81-2.55Q21.51 12 24 12q-2.49 0-4.68-.93a12.3 12.3 0 0 1-3.81-2.58 12.3 12.3 0 0 1-2.58-3.81Q12 2.49 12 0q0 2.49-.96 4.68-.93 2.19-2.55 3.81a12.3 12.3 0 0 1-3.81 2.58Q2.49 12 0 12q2.49 0 4.68.96 2.19.93 3.81 2.55t2.55 3.81" />
+    </svg>
+  );
+}
+
 // Kiro CLI — official icon sourced from kiro.dev/icon.svg.
 function KiroLogo({ className }: { className: string }) {
   const maskId = `kiro-logo-mask-${useId().replace(/:/g, "")}`;
@@ -193,6 +205,8 @@ export function ProviderLogo({
       return <KimiLogo className={className} />;
     case "kiro":
       return <KiroLogo className={className} />;
+    case "gemini":
+      return <GeminiLogo className={className} />;
     default:
       return <Monitor className={className} />;
   }