Add ingest application API key examples for Managed Inputs

specification/security/create_api_key/examples/request/SecurityCreateApiKeyRequestExample2.yaml

@@ -0,0 +1,24 @@
+summary: Create an ingest API key for a Managed Inputs pipeline
+method_request: POST /_security/api_key
+description: >
+  Run `POST /_security/api_key` to create an API key for ingesting data into a specific Managed Inputs pipeline.
+  The `ingest` application privilege controls access to the Elastic Cloud Managed OTLP (mOTLP) endpoint.
+  The `pipeline:` resource prefix scopes the key to a named pipeline.
+  To allow access to all pipelines, use `"resources": ["*"]` or omit the `role_descriptors` field entirely.
+# type: request
+value: |-
+  {
+    "name": "fleet_agent_policy_123-api-key",
+    "expiration": "1d",
+    "role_descriptors": {
+      "motlp_pipeline_write_role": {
+        "applications": [
+          {
+            "application": "ingest",
+            "privileges": ["write"],
+            "resources": ["pipeline:.fleet_agent_policy_1"]
+          }
+        ]
+      }
+    }
+  }

specification/security/create_api_key/examples/response/SecurityCreateApiKeyResponseExample2.yaml

@@ -0,0 +1,12 @@
+# summary:
+description: A successful response from `POST /_security/api_key`.
+# type: response
+# response_code: 200
+value: |-
+  {
+    "id": "VuaCfGcBCdbkQm-e5aOx",
+    "name": "fleet_agent_policy_123-api-key",
+    "expiration": 1544068612110,
+    "api_key": "ui2lp2axTNmsyakw9tvNnw",
+    "encoded": "VnVhQ2ZHY0JDZGJrUW0tZTVhT3g6dWkybHAyYXhUTm1zeWFrdzl0dk5udw=="
+  }

specification/security/has_privileges/examples/request/SecurityHasPrivilegesRequestExample2.yaml

@@ -0,0 +1,17 @@
+summary: Check ingest application privileges for a Managed Inputs pipeline
+method_request: GET /_security/user/_has_privileges
+description: >
+  Run `GET /_security/user/_has_privileges` to check whether the current user has write access to a specific
+  Managed Inputs pipeline. The Elastic Cloud Managed OTLP (mOTLP) endpoint performs this check to authorize
+  client API keys before accepting telemetry data.
+# type: request
+value: |-
+  {
+    "application": [
+      {
+        "application": "ingest",
+        "privileges": ["write"],
+        "resources": ["pipeline:.fleet_agent_policy_1"]
+      }
+    ]
+  }