feat: add Gemini to Ask AI dropdown

Added Google Gemini as a fourth AI chat option in the page title
dropdown, with deep-link support via gemini.google.com/app.

Author: gregnazario

src/assets/images/gemini.svg

@@ -1,6 +1,7 @@
 ---
 import claudeIcon from "../assets/images/claude-ai.svg";
 import chatgptIcon from "../assets/images/chatgpt.svg";
+import geminiIcon from "../assets/images/gemini.svg";
 
 export interface Props {
   labels: {
@@ -14,6 +15,7 @@ export interface Props {
     copyUrlDesc: string;
     openInChatGPT: string;
     openInClaude: string;
+    openInGemini: string;
     openInPerplexity: string;
     aiSection: string;
     copySection: string;
@@ -26,6 +28,7 @@ const { labels, pageUrl } = Astro.props;
 const aiPrompt = `Read from ${pageUrl} so I can ask questions about it. If there are subpages or important links, read those too. Give a very brief yet holistic and concise tldr, then guess at some questions i might have in the form of FAQ (include your answers or what steps you'd need to do to answer them) too. End by asking me what I'd like to know / do re ${pageUrl} specifically, noting key subpages and important links`;
 const claudeUrl = `https://claude.ai/new?q=${encodeURIComponent(aiPrompt)}`;
 const chatgptUrl = `https://chat.openai.com/?q=${encodeURIComponent(aiPrompt)}&hints=search`;
+const geminiUrl = `https://gemini.google.com/app?q=${encodeURIComponent(aiPrompt)}`;
 const perplexityUrl = `https://www.perplexity.ai/?q=${encodeURIComponent(`Help me understand this Aptos documentation page: ${pageUrl}`)}`;
 ---
 
@@ -140,6 +143,35 @@ const perplexityUrl = `https://www.perplexity.ai/?q=${encodeURIComponent(`Help m
         </svg>
       </a>
 
+      <a
+        class="menu-item"
+        role="menuitem"
+        href={geminiUrl}
+        target="_blank"
+        rel="noopener noreferrer"
+      >
+        <img src={geminiIcon.src} alt="Gemini" width="16" height="16" />
+        <div class="menu-item-text">
+          <span class="menu-item-label">{labels.openInGemini}</span>
+        </div>
+        <svg
+          class="icon-external"
+          xmlns="http://www.w3.org/2000/svg"
+          width="12"
+          height="12"
+          viewBox="0 0 24 24"
+          fill="none"
+          stroke="currentColor"
+          stroke-width="2"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+        >
+          <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"></path>
+          <polyline points="15 3 21 3 21 9"></polyline>
+          <line x1="10" y1="14" x2="21" y2="3"></line>
+        </svg>
+      </a>
+
       <a
         class="menu-item"
         role="menuitem"

src/components/CopyPageButton.astro

@@ -83,6 +83,7 @@ export const AstroDocsI18nSchema = z
     "copyPage.copyUrlDesc": z.string(),
     "copyPage.openInChatGPT": z.string(),
     "copyPage.openInClaude": z.string(),
+    "copyPage.openInGemini": z.string(),
     "copyPage.openInPerplexity": z.string(),
     "copyPage.aiSection": z.string(),
     "copyPage.copySection": z.string(),

src/content/i18n-schema.ts

@@ -11,6 +11,7 @@
   "copyPage.copyUrlDesc": "Share this page link",
   "copyPage.openInChatGPT": "Open in ChatGPT",
   "copyPage.openInClaude": "Open in Claude",
+  "copyPage.openInGemini": "Open in Gemini",
   "copyPage.openInPerplexity": "Open in Perplexity",
   "copyPage.aiSection": "Discuss this page",
   "copyPage.copySection": "Copy content",

src/content/i18n/en.json

@@ -11,6 +11,7 @@
   "copyPage.copyUrlDesc": "分享此页面链接",
   "copyPage.openInChatGPT": "在 ChatGPT 中打开",
   "copyPage.openInClaude": "在 Claude 中打开",
+  "copyPage.openInGemini": "在 Gemini 中打开",
   "copyPage.openInPerplexity": "在 Perplexity 中打开",
   "copyPage.aiSection": "讨论此页面",
   "copyPage.copySection": "复制内容",

src/content/i18n/zh.json

@@ -30,6 +30,7 @@ const pageUrl = Astro.url.href;
       copyUrlDesc: t("copyPage.copyUrlDesc"),
       openInChatGPT: t("copyPage.openInChatGPT"),
       openInClaude: t("copyPage.openInClaude"),
+      openInGemini: t("copyPage.openInGemini"),
       openInPerplexity: t("copyPage.openInPerplexity"),
       aiSection: t("copyPage.aiSection"),
       copySection: t("copyPage.copySection"),