Add logo artwork and docs branding assets

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jensens

artwork/xray-pickles-elephant.png

@@ -0,0 +1,31 @@
+{
+    "name": "zodb-json-codec",
+    "short_name": "zodb-json-codec",
+    "description": "Pickle to JSON transcoder for ZODB, built in Rust with PyO3.",
+    "start_url": "/zodb-json-codec/",
+    "display": "browser",
+    "background_color": "#1a1a2e",
+    "theme_color": "#f97316",
+    "icons": [
+        {
+            "src": "logo-web.png",
+            "sizes": "200x133",
+            "type": "image/png"
+        },
+        {
+            "src": "apple-touch-icon.png",
+            "sizes": "180x120",
+            "type": "image/png"
+        },
+        {
+            "src": "logo-400.png",
+            "sizes": "400x267",
+            "type": "image/png"
+        },
+        {
+            "src": "logo.png",
+            "sizes": "512x341",
+            "type": "image/png"
+        }
+    ]
+}

docs/sources/_static/apple-touch-icon.png

@@ -1,11 +1,14 @@
-{# Extend the theme's layout to inject Open Graph meta #}
+{# Extend the theme's layout to inject icons, manifest, and Open Graph meta #}
 {% extends "!layout.html" %}
 
 {% block metatags %}
 {{ super() }}
+<link rel="apple-touch-icon" sizes="180x120" href="{{ pathto('_static/apple-touch-icon.png', 1) }}">
+<link rel="manifest" href="{{ pathto('_static/site.webmanifest', 1) }}">
 <meta property="og:type" content="website">
 <meta property="og:title" content="{{ title }}">
 <meta property="og:description" content="Fast pickle-to-JSON transcoder for ZODB, implemented in Rust via PyO3.">
+<meta property="og:image" content="https://bluedynamics.github.io/zodb-json-codec/_static/og-image.png">
 <meta property="og:url" content="https://bluedynamics.github.io/zodb-json-codec/">
-<meta name="twitter:card" content="summary">
+<meta name="twitter:card" content="summary_large_image">
 {% endblock %}

docs/sources/_static/logo-400.png

@@ -53,4 +53,5 @@
 
 html_extra_path = ["llms.txt"]
 html_static_path = ["_static"]
+html_logo = "_static/logo-web.png"
 html_favicon = "_static/favicon.ico"