chore(docs): Update redirects for langgraph server to agent server rename (#6399)

Renaming LangGraph Server to Agent Server, this updates the redirects
from the old site to the new site's renamed files.
PR also includes some hosting --> platform setup redirects

Author: katmayb

docs/_scripts/notebook_hooks.py

@@ -81,7 +81,7 @@
     # cloud redirects
     "cloud/index.md": "https://docs.langchain.com/oss/python/langgraph/overview",
     "cloud/how-tos/index.md": "https://docs.langchain.com/langsmith/home",
-    "cloud/concepts/api.md": "https://docs.langchain.com/langsmith/langgraph-server",
+    "cloud/concepts/api.md": "https://docs.langchain.com/langsmith/agent-server",
     "cloud/concepts/cloud.md": "https://docs.langchain.com/langsmith/cloud",
     "cloud/faq/studio.md": "https://docs.langchain.com/langsmith/studio",
     "cloud/how-tos/human_in_the_loop_edit_state.md": "https://docs.langchain.com/langsmith/add-human-in-the-loop",
@@ -111,8 +111,8 @@
     "tutorials/introduction.ipynb": "https://docs.langchain.com/oss/python/langgraph/overview",
     "agents/deployment.md": "https://docs.langchain.com/oss/python/langgraph/local-server",
     # deployment redirects
-    "how-tos/deploy-self-hosted.md": "https://docs.langchain.com/langsmith/hosting",
-    "concepts/self_hosted.md": "https://docs.langchain.com/langsmith/hosting",
+    "how-tos/deploy-self-hosted.md": "https://docs.langchain.com/langsmith/platform-setup",
+    "concepts/self_hosted.md": "https://docs.langchain.com/langsmith/platform-setup",
     "tutorials/deployment.md": "https://docs.langchain.com/langsmith/deployments",
     # assistant redirects
     "cloud/how-tos/assistant_versioning.md": "https://docs.langchain.com/langsmith/configuration-cloud",
@@ -138,7 +138,7 @@
     "cloud/how-tos/generative_ui_react.md": "https://docs.langchain.com/langsmith/generative-ui-react",
     "concepts/langgraph_platform.md": "https://docs.langchain.com/langsmith/deployments",
     "concepts/langgraph_components.md": "https://docs.langchain.com/langsmith/components",
-    "concepts/langgraph_server.md": "https://docs.langchain.com/langsmith/langgraph-server",
+    "concepts/langgraph_server.md": "https://docs.langchain.com/langsmith/agent-server",
     "concepts/langgraph_data_plane.md": "https://docs.langchain.com/langsmith/data-plane",
     "concepts/langgraph_control_plane.md": "https://docs.langchain.com/langsmith/control-plane",
     "concepts/langgraph_cli.md": "https://docs.langchain.com/langsmith/cli",
@@ -201,7 +201,7 @@
     "cloud/deployment/egress.md": "https://docs.langchain.com/langsmith/env-var",
     "cloud/how-tos/streaming.md": "https://docs.langchain.com/langsmith/streaming",
     "cloud/reference/api/api_ref.md": "https://docs.langchain.com/langsmith/server-api-ref",
-    "cloud/reference/langgraph_server_changelog.md": "https://docs.langchain.com/langsmith/langgraph-server-changelog",
+    "cloud/reference/langgraph_server_changelog.md": "https://docs.langchain.com/langsmith/agent-server-changelog",
     "cloud/reference/api/api_ref_control_plane.md": "https://docs.langchain.com/langsmith/api-ref-control-plane",
     "cloud/reference/cli.md": "https://docs.langchain.com/langsmith/cli",
     "cloud/reference/env_var.md": "https://docs.langchain.com/langsmith/env-var",
@@ -294,8 +294,8 @@
     "cloud/deployment/custom_docker.md": "https://docs.langchain.com/langsmith/custom-docker",
     "cloud/deployment/egress.md": "https://docs.langchain.com/langsmith/env-var",
     "cloud/deployment/graph_rebuild.md": "https://docs.langchain.com/langsmith/graph-rebuild",
-    "cloud/deployment/self_hosted_control_plane.md": "https://docs.langchain.com/langsmith/hosting",
-    "cloud/deployment/self_hosted_data_plane.md": "https://docs.langchain.com/langsmith/hosting",
+    "cloud/deployment/self_hosted_control_plane.md": "https://docs.langchain.com/langsmith/platform-setup",
+    "cloud/deployment/self_hosted_data_plane.md": "https://docs.langchain.com/langsmith/platform-setup",
     "cloud/deployment/semantic_search.md": "https://docs.langchain.com/langsmith/semantic-search",
     "cloud/deployment/setup_javascript.md": "https://docs.langchain.com/langsmith/setup-javascript",
     "cloud/deployment/setup_pyproject.md": "https://docs.langchain.com/langsmith/setup-pyproject",
@@ -331,7 +331,7 @@
     "cloud/reference/api/api_ref.md": "https://docs.langchain.com/langsmith/server-api-ref",
     "cloud/reference/cli.md": "https://docs.langchain.com/langsmith/cli",
     "cloud/reference/env_var.md": "https://docs.langchain.com/langsmith/env-var",
-    "cloud/reference/langgraph_server_changelog.md": "https://docs.langchain.com/langsmith/langgraph-server-changelog",
+    "cloud/reference/langgraph_server_changelog.md": "https://docs.langchain.com/langsmith/agent-server-changelog",
     "cloud/reference/sdk/js_ts_sdk_ref.md": "https://reference.langchain.com/javascript/modules/langsmith.html",
     "concepts/application_structure.md": "https://docs.langchain.com/langsmith/application-structure",
     "concepts/assistants.md": "https://docs.langchain.com/langsmith/assistants",
@@ -345,9 +345,9 @@
     "concepts/langgraph_control_plane.md": "https://docs.langchain.com/langsmith/control-plane",
     "concepts/langgraph_data_plane.md": "https://docs.langchain.com/langsmith/data-plane",
     "concepts/langgraph_platform.md": "https://docs.langchain.com/langsmith/home",
-    "concepts/langgraph_self_hosted_control_plane.md": "https://docs.langchain.com/langsmith/hosting",
-    "concepts/langgraph_self_hosted_data_plane.md": "https://docs.langchain.com/langsmith/hosting",
-    "concepts/langgraph_server.md": "https://docs.langchain.com/langsmith/langgraph-server",
+    "concepts/langgraph_self_hosted_control_plane.md": "https://docs.langchain.com/langsmith/platform-setup",
+    "concepts/langgraph_self_hosted_data_plane.md": "https://docs.langchain.com/langsmith/platform-setup",
+    "concepts/langgraph_server.md": "https://docs.langchain.com/langsmith/agent-server",
     "concepts/langgraph_standalone_container.md": "https://docs.langchain.com/langsmith/docker",
     "concepts/langgraph_studio.md": "https://docs.langchain.com/langsmith/studio",
     "concepts/plans.md": "https://docs.langchain.com/langsmith/home",