feat(develop): Add outgoing_request context

This should replace `event.request` on the client completely.

Author: mydea

develop-docs/sdk/data-model/event-payloads/contexts.mdx

@@ -828,6 +828,55 @@ Page context contains information about the page that the event occurred on.
 }
 ```
 
+## Outgoing Request Context
+
+Outgoing request context contains information about the outgoing request associated with the event.
+It should only be set for events that are associated with an outgoing request - for example, a `failed to fetch` error on a web page.
+
+`url`
+
+: **Required.** The URL of the outgoing request.
+
+- Example: `https://sentry.io/api/0/projects/sentry/sentry/issues/?page=1`
+
+`method`
+
+: **Required.** The HTTP method of the outgoing request.
+
+- Example: `GET`
+
+`headers`
+
+: **Optional.** The headers of the outgoing request.
+
+- Example: `{ "Content-Type": "application/json" }`
+
+`data`
+
+: **Optional.** The data of the outgoing request.
+
+- Example: `{ "name": "John Doe", "email": "[email protected]" }`
+
+### Example Outgoing Request Context
+
+```json
+{
+  "contexts": {
+    "outgoing_request": {
+      "url": "https://sentry.io/api/0/projects/sentry/sentry/issues/?page=1",
+      "method": "GET",
+      "headers": {
+        "Content-Type": "application/json"
+      },
+      "data": {
+        "name": "John Doe",
+        "email": "[email protected]"
+      }
+    }
+  }
+}
+```
+
 ## Response Context
 
 Response context contains information about the HTTP response associated with the event.

develop-docs/sdk/data-model/event-payloads/request.mdx

@@ -3,9 +3,10 @@ title: Request Interface
 sidebar_order: 8
 ---
 
-The Request interface contains information on a HTTP request related to the
-event. In client SDKs, this can be an outgoing request (use the [page context](../contexts/#page-context) to track the page that the request was made from).
-On server SDKs, this could be the incoming web request that is being handled.
+The Request interface contains information on an incoming HTTP request related to the
+event. For outgoing requests, use the [outgoing request context](../contexts/#outgoing-request-context).
+
+In client SDKs, use the [page context](../contexts/#page-context) instead.
 
 The data variable should only contain the request body (not the query string).
 It can either be a dictionary (for standard HTTP requests) or a raw request