feat: improve AssistantGenText definition (#577)

Author: mrh997

schema/agentic_message.go

@@ -166,8 +166,9 @@ type UserInputFile struct {
 type AssistantGenText struct {
 	Text string
 
-	OpenAIAnnotations []*openai.TextAnnotation
-	ClaudeCitations   []*claude.TextCitation
+	OpenAIExtensions *openai.OutputText
+	ClaudeExtensions *claude.TextBlock
+	Extensions       any
 
 	// Extra stores additional information.
 	Extra map[string]any

schema/claude/types.go renamed to schema/claude/consts.go

@@ -16,6 +16,10 @@
 
 package claude
 
+type TextBlock struct {
+	Citations []*TextCitation `json:"citations"`
+}
+
 type TextCitation struct {
 	Type TextCitationType `json:"type"`
 

schema/claude/citation.go renamed to schema/claude/content_block.go

@@ -16,6 +16,11 @@
 
 package openai
 
+type OutputText struct {
+	ItemID      string            `json:"item_id"`
+	Annotations []*TextAnnotation `json:"annotations"`
+}
+
 type TextAnnotation struct {
 	Type TextAnnotationType `json:"type"`