Add Quorla logo set and build the app icon from the Q mark

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

branding/README.md

@@ -9,3 +9,16 @@ Used by `tools/report-pdf` to brand every PDF report (audits, weekly reports).
 To swap in new logos, overwrite the files and keep the same names. No code changes are needed.
 
 **Agency branding only goes on reports we send to clients privately.** It must never appear on client social posts, captions or public content (white-label rule in CLAUDE.md).
+
+## Quorla (the product)
+| File | Use |
+|---|---|
+| `quorla-logo-horizontal.png` | Q mark + "quorla" side by side: website header, app sign-in screen, emails |
+| `quorla-logo-stacked.png` | Q mark above "quorla": square spaces, social profile images, slides |
+| `quorla-mark.png` | Q mark alone (transparent background): favicon source, small spaces |
+| `quorla-wordmark.png` | "quorla" text only |
+| `quorla-icon-1024.png` | 1024×1024 app icon (mark on white): TikTok, Google, LinkedIn, Pinterest, Meta app listings |
+
+Colours (sampled from the logo): navy `#242142`, coral `#FC6D45`.
+The Metatroncube files stay for the agency's own branded PDF reports. Quorla files are for the product.
+