refactor: Convert Tanzu provider to declarative JSON config (#7124)

Signed-off-by: Nick Kuhn <nick.kuhn@broadcom.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

crates/goose-server/src/openapi.rs

@@ -17,7 +17,7 @@ use rmcp::model::{
 use utoipa::{OpenApi, ToSchema};
 
 use goose::config::declarative_providers::{
-    DeclarativeProviderConfig, LoadedProvider, ProviderEngine,
+    DeclarativeProviderConfig, EnvVarConfig, LoadedProvider, ProviderEngine,
 };
 use goose::conversation::message::{
     ActionRequired, ActionRequiredData, FrontendToolRequest, Message, MessageContent,
@@ -509,6 +509,7 @@ derive_utoipa!(Icon as IconSchema);
         LoadedProvider,
         ProviderEngine,
         DeclarativeProviderConfig,
+        EnvVarConfig,
         ExtensionEntry,
         ExtensionConfig,
         ConfigKey,