refactor: rename agent widget references to AI agent for consistency

- Updated runtime configuration to use __CS_AI_AGENT_WIDGET_CONFIG__ instead of __CS_AGENT_WIDGET_CONFIG__.
- Changed message types in support host bridge from "cs-agent" to "cs-ai-agent".
- Minified SDK script updated to reflect new AI agent naming conventions.
- Adjusted scrollbar styles in main.scss to use .cs-ai-agent-scrollbar instead of .cs-agent-scrollbar.

internal/ai/runtime/instruction/helpers.go

@@ -5,9 +5,9 @@ import (
 	"fmt"
 	"strings"
 
-	runtimetooling "cs-agent/internal/ai/runtime/tooling"
-	"cs-agent/internal/models"
-	"cs-agent/internal/pkg/toolx"
+	runtimetooling "cs-ai-agent/internal/ai/runtime/tooling"
+	"cs-ai-agent/internal/models"
+	"cs-ai-agent/internal/pkg/toolx"
 )
 
 func BuildSelectedSkillActivationInstruction(skill *models.SkillDefinition) string {

internal/ai/runtime/instruction/providers.go

@@ -1,9 +1,9 @@
 package instruction
 
 import (
-	"cs-agent/internal/ai/runtime/tooling"
-	"cs-agent/internal/models"
-	"cs-agent/internal/pkg/toolx"
+	"cs-ai-agent/internal/ai/runtime/tooling"
+	"cs-ai-agent/internal/models"
+	"cs-ai-agent/internal/pkg/toolx"
 )
 
 type ToolAppendixProvider struct{}

internal/ai/runtime/instruction/service.go

@@ -3,8 +3,8 @@ package instruction
 import (
 	"strings"
 
-	runtimetooling "cs-agent/internal/ai/runtime/tooling"
-	"cs-agent/internal/models"
+	runtimetooling "cs-ai-agent/internal/ai/runtime/tooling"
+	"cs-ai-agent/internal/models"
 )
 
 type Service struct {