docs: point Realtime/Redis Analytics/Agent Analytics cards at real targets (redirect stubs don't redirect on direct nav)

Author: CahidArda

snippets/catalog.jsx

@@ -19,10 +19,10 @@ export const Catalog = ({ product, type, featured, search, cols = 3 }) => {
     { title: "upstash-redis (Python)", description: "Serverless Redis client for Python.", href: "/redis/sdks/py/overview", product: "redis", type: "sdk", lang: "python" },
     { title: "@upstash/ratelimit", description: "Rate limiting for serverless, built on Redis.", href: "/redis/sdks/ratelimit-ts/overview", product: "redis", type: "sdk", lang: "typescript", featured: true },
     { title: "ratelimit (Python)", description: "Rate limiting SDK for Python.", href: "/redis/sdks/ratelimit-py/overview", product: "redis", type: "sdk", lang: "python" },
-    { title: "Realtime", description: "Add realtime features to any Next.js app.", href: "/redis/sdks/realtime", product: "redis", type: "sdk", lang: "typescript" },
+    { title: "Realtime", description: "Add realtime features to any Next.js app.", href: "/realtime/overall/quickstart", product: "redis", type: "sdk", lang: "typescript" },
     { title: "AgentKit", description: "Agent memory, RAG, and chat history on Redis.", href: "/redis/sdks/agentkit/ai-sdk", product: "redis", type: "sdk", lang: "typescript" },
-    { title: "Redis Analytics", description: "Event tracking, flags, and A/B testing, powered by Redis.", href: "/redis/sdks/redis-analytics", product: "redis", type: "sdk", lang: "typescript" },
-    { title: "Agent Analytics", description: "Track AI agent traffic hitting your website.", href: "/redis/sdks/agent-analytics", product: "redis", type: "sdk", lang: "typescript" },
+    { title: "Redis Analytics", description: "Event tracking, flags, and A/B testing, powered by Redis.", href: "https://github.com/upstash/redis-analytics", product: "redis", type: "sdk", lang: "typescript" },
+    { title: "Agent Analytics", description: "Track AI agent traffic hitting your website.", href: "https://github.com/upstash/agent-analytics", product: "redis", type: "sdk", lang: "typescript" },
     { title: "@upstash/vector", description: "Vector database client for AI and LLM apps.", href: "/vector/sdks/ts/getting-started", product: "vector", type: "sdk", lang: "typescript", featured: true },
     { title: "upstash-vector (Python)", description: "Vector database client for Python.", href: "/vector/sdks/py/gettingstarted", product: "vector", type: "sdk", lang: "python" },
     { title: "@upstash/qstash", description: "Publish messages and schedule jobs over HTTP.", href: "/qstash/sdks/ts/overview", product: "qstash", type: "sdk", lang: "typescript", featured: true },