Lead with spelled-out 'Copilot API (CAPI)' on first mention

Update the CapiSessionOptions type-level doc summary in each language to lead
with the spelled-out 'Copilot API (CAPI)' form on first use, matching the
existing docs convention (and the Node SDK, which already did this). Python's
class docstring previously never expanded the acronym.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

dotnet/src/Types.cs

@@ -2068,7 +2068,7 @@ public sealed class ProviderConfig
 }
 
 /// <summary>
-/// Provider-scoped options for the CAPI (Copilot API) provider.
+/// Provider-scoped options for the Copilot API (CAPI) provider.
 /// </summary>
 public sealed class CapiSessionOptions
 {

go/types.go

@@ -1572,7 +1572,7 @@ type ProviderConfig struct {
 	MaxOutputTokens int `json:"maxOutputTokens,omitempty"`
 }
 
-// CapiSessionOptions configures provider-scoped CAPI (Copilot API) session behavior.
+// CapiSessionOptions configures provider-scoped Copilot API (CAPI) session behavior.
 //
 // WebSocket transport is the default for the CAPI Responses API whenever the
 // model advertises the ws:/responses endpoint. Set DisableWebSocketResponses to

java/src/main/java/com/github/copilot/rpc/CapiSessionOptions.java

@@ -8,7 +8,7 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 
 /**
- * Provider-scoped session options for the CAPI (Copilot API) provider.
+ * Provider-scoped session options for the Copilot API (CAPI) provider.
  * <p>
  * WebSocket transport is the default for the CAPI Responses API whenever the
  * model advertises the {@code ws:/responses} endpoint. Setting

python/copilot/client.py

@@ -136,7 +136,7 @@ class CloudSessionOptions:
 
 
 class CapiSessionOptions(TypedDict, total=False):
-    """CAPI provider-scoped session options."""
+    """Provider-scoped Copilot API (CAPI) session options."""
 
     disable_web_socket_responses: bool
     """Opt out of WebSocket Responses transport and use HTTP Responses instead."""

rust/src/types.rs

@@ -1160,7 +1160,7 @@ impl ProviderConfig {
     }
 }
 
-/// Provider-scoped CAPI (Copilot API) session options.
+/// Provider-scoped Copilot API (CAPI) session options.
 ///
 /// WebSocket transport is the default for the CAPI Responses API whenever
 /// the model advertises the `ws:/responses` endpoint. Set