Wire worker_commands namespace capability (#10084)

## What
Wire the new `worker_commands` namespace capability to the existing
`WorkerCommandsEnabled` dynamic config flag.

Also bumped the API version.

## Why
SDKs need this capability to know when to create the implicit control
task queue and poller for receiving worker commands
(temporalio/api#771).

## How did you test it?
Unit tests

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: rkannan82

go.mod

@@ -63,7 +63,7 @@ require (
 	go.opentelemetry.io/otel/sdk v1.43.0
 	go.opentelemetry.io/otel/sdk/metric v1.43.0
 	go.opentelemetry.io/otel/trace v1.43.0
-	go.temporal.io/api v1.62.12-0.20260424184119-9015efabce8d
+	go.temporal.io/api v1.62.12-0.20260427172148-34044e215df3
 	go.temporal.io/auto-scaled-workers v0.0.0-20260407181057-edd947d743d2
 	go.temporal.io/sdk v1.41.1
 	go.uber.org/fx v1.24.0

go.sum

@@ -469,8 +469,8 @@ go.opentelemetry.io/proto/slim/otlp/collector/profiles/v1development v0.3.0 h1:R
 go.opentelemetry.io/proto/slim/otlp/collector/profiles/v1development v0.3.0/go.mod h1:I89cynRj8y+383o7tEQVg2SVA6SRgDVIouWPUVXjx0U=
 go.opentelemetry.io/proto/slim/otlp/profiles/v1development v0.3.0 h1:CQvJSldHRUN6Z8jsUeYv8J0lXRvygALXIzsmAeCcZE0=
 go.opentelemetry.io/proto/slim/otlp/profiles/v1development v0.3.0/go.mod h1:xSQ+mEfJe/GjK1LXEyVOoSI1N9JV9ZI923X5kup43W4=
-go.temporal.io/api v1.62.12-0.20260424184119-9015efabce8d h1:On7TmNeQ/mm1fxkXCn2Aqqf9Sy8GgcKPJUZunqA7Wpo=
-go.temporal.io/api v1.62.12-0.20260424184119-9015efabce8d/go.mod h1:iaxoP/9OXMJcQkETTECfwYq4cw/bj4nwov8b3ZLVnXM=
+go.temporal.io/api v1.62.12-0.20260427172148-34044e215df3 h1:6MMqFF1Gj9wMPOY3VM1EIEA/y29Y92CZKj4IjGy5UNA=
+go.temporal.io/api v1.62.12-0.20260427172148-34044e215df3/go.mod h1:iaxoP/9OXMJcQkETTECfwYq4cw/bj4nwov8b3ZLVnXM=
 go.temporal.io/auto-scaled-workers v0.0.0-20260407181057-edd947d743d2 h1:1hKeH3GyR6YD6LKMHGCZ76t6h1Sgha0hXVQBxWi3dlQ=
 go.temporal.io/auto-scaled-workers v0.0.0-20260407181057-edd947d743d2/go.mod h1:T8dnzVPeO+gaUTj9eDgm/lT2lZH4+JXNvrGaQGyVi50=
 go.temporal.io/sdk v1.41.1 h1:yOpvsHyDD1lNuwlGBv/SUodCPhjv9nDeC9lLHW/fJUA=

service/frontend/namespace_handler.go

@@ -867,6 +867,7 @@ func (d *namespaceHandler) createResponse(
 			WorkflowPause:                   d.config.WorkflowPauseEnabled(info.Name),
 			StandaloneActivities:            d.config.Activity.Enabled(info.Name),
 			WorkerPollCompleteOnShutdown:    d.config.EnableCancelWorkerPollsOnShutdown(info.Name),
+			WorkerCommands:                  d.config.WorkerCommandsEnabled(info.Name),
 			PollerAutoscaling:               true,
 		},
 		Limits: &namespacepb.NamespaceInfo_Limits{

service/frontend/namespace_handler_test.go

@@ -387,6 +387,7 @@ func (s *namespaceHandlerCommonSuite) TestCapabilitiesAndLimits() {
 	s.False(resp.NamespaceInfo.Capabilities.WorkflowPause)
 	s.False(resp.NamespaceInfo.Capabilities.StandaloneActivities)
 	s.False(resp.NamespaceInfo.Capabilities.WorkerPollCompleteOnShutdown)
+	s.False(resp.NamespaceInfo.Capabilities.WorkerCommands)
 	s.True(resp.NamespaceInfo.Capabilities.PollerAutoscaling)
 	s.Equal(int64(2*1024*1024), resp.NamespaceInfo.Limits.BlobSizeLimitError)
 	s.Equal(int64(2*1024*1024), resp.NamespaceInfo.Limits.MemoSizeLimitError)
@@ -402,6 +403,7 @@ func (s *namespaceHandlerCommonSuite) TestCapabilitiesAndLimits() {
 	s.config.BlobSizeLimitError = dc.GetIntPropertyFnFilteredByNamespace(1024)
 	s.config.MemoSizeLimitError = dc.GetIntPropertyFnFilteredByNamespace(512)
 	s.config.EnableCancelWorkerPollsOnShutdown = dc.GetBoolPropertyFnFilteredByNamespace(true)
+	s.config.WorkerCommandsEnabled = dc.GetBoolPropertyFnFilteredByNamespace(true)
 
 	resp, err = s.handler.DescribeNamespace(context.Background(), &workflowservice.DescribeNamespaceRequest{
 		Namespace: "ns",
@@ -415,6 +417,7 @@ func (s *namespaceHandlerCommonSuite) TestCapabilitiesAndLimits() {
 	s.True(resp.NamespaceInfo.Capabilities.WorkflowPause)
 	s.True(resp.NamespaceInfo.Capabilities.StandaloneActivities)
 	s.True(resp.NamespaceInfo.Capabilities.WorkerPollCompleteOnShutdown)
+	s.True(resp.NamespaceInfo.Capabilities.WorkerCommands)
 	s.Equal(int64(1024), resp.NamespaceInfo.Limits.BlobSizeLimitError)
 	s.Equal(int64(512), resp.NamespaceInfo.Limits.MemoSizeLimitError)
 }