docs: remove stale hidden pages and add input streams to nav

Removes seven docs pages that were no longer linked from the navigation
and had gone stale: the v2 upgrade guide, the Defer.run migration guide,
the old Cursor rules guide, the "regular tasks" page, and three empty or
"coming soon" stubs (examples, known issues, notifications). Each
removed URL now redirects to the current page for that topic, and the
two remaining links to them point at the new destinations.

Also adds the backend input streams guide to the Realtime navigation,
where it was missing.

Mono-RevId: 74e936090909a47663badbbf11deca6398ad72cb

Author: isshaddad

docs/docs.json

@@ -231,7 +231,8 @@
                 "pages": [
                   "realtime/backend/overview",
                   "realtime/backend/subscribe",
-                  "realtime/backend/streams"
+                  "realtime/backend/streams",
+                  "realtime/backend/input-streams"
                 ]
               }
             ]
@@ -788,7 +789,11 @@
     },
     {
       "source": "/v3/upgrading-from-v2",
-      "destination": "/guides/use-cases/upgrading-from-v2"
+      "destination": "/migrating-from-v3"
+    },
+    {
+      "source": "/guides/use-cases/upgrading-from-v2",
+      "destination": "/migrating-from-v3"
     },
     {
       "source": "/open-source-self-hosting",
@@ -838,6 +843,26 @@
       "source": "/guides/examples/intro",
       "destination": "/guides/introduction"
     },
+    {
+      "source": "/examples",
+      "destination": "/guides/introduction"
+    },
+    {
+      "source": "/known-issues",
+      "destination": "/troubleshooting"
+    },
+    {
+      "source": "/notifications",
+      "destination": "/realtime/overview"
+    },
+    {
+      "source": "/tasks-regular",
+      "destination": "/tasks/overview"
+    },
+    {
+      "source": "/migration-defer",
+      "destination": "/quick-start"
+    },
     {
       "source": "/examples/:slug*",
       "destination": "/guides/examples/:slug*"

docs/examples.mdx

@@ -15,7 +15,7 @@ In this guide, you'll learn how to use Sequin to trigger Trigger.dev tasks from
 
 ## Prerequisites
 
-You are about to create a [regular Trigger.dev task](/tasks-regular) that you will execute when ever a post is inserted or updated in your database. Sequin will detect all the changes on the `posts` table and then send the payload of the post to an API endpoint that will call `tasks.trigger()` to create the embedding and update the database.
+You are about to create a [regular Trigger.dev task](/tasks/overview) that you will execute when ever a post is inserted or updated in your database. Sequin will detect all the changes on the `posts` table and then send the payload of the post to an API endpoint that will call `tasks.trigger()` to create the embedding and update the database.
 
 As long as you create an HTTP endpoint that Sequin can deliver webhooks to, you can use any web framework or edge function (e.g. Supabase Edge Functions, Vercel Functions, Cloudflare Workers, etc.) to invoke your Trigger.dev task. In this guide, we'll show you how to setup Trigger.dev tasks using Next.js API Routes.
 

docs/guides/cursor-rules.mdx

@@ -30,7 +30,7 @@ Get set up fast using our detailed walk-through guides.
 | [AI Agent: Route questions](/guides/ai-agents/route-question)                              | Route questions to different models based on complexity              |
 | [AI Agent: Translation refinement](/guides/ai-agents/translate-and-refine)                 | Evaluate and refine translations with feedback                       |
 | [Claude Agent SDK](/guides/ai-agents/claude-code-trigger)                                  | Build AI agents that read files, run commands, and edit code         |
-| [Cursor rules](/guides/cursor-rules)                                                       | Use Cursor rules to help write Trigger.dev tasks                     |
+| [Agent rules](/mcp-agent-rules)                                                            | Install agent skills so your AI assistant writes correct tasks       |
 | [Prisma](/guides/frameworks/prisma)                                                        | How to setup Prisma with Trigger.dev                                 |
 | [Python image processing](/guides/python/python-image-processing)                          | Use Python and Pillow to process images                              |
 | [Python document to markdown](/guides/python/python-doc-to-markdown)                       | Use Python and MarkItDown to convert documents to markdown           |