feat: openai response /v1/response/compact (#2644)

* feat: openai response /v1/response/compact

* feat: /v1/response/compact bill

* feat: /v1/response/compact

* feat: /v1/responses/compact -> codex channel

* feat: /v1/responses/compact -> codex channel

* feat: /v1/responses/compact -> codex channel

* feat: codex channel default models

* feat: compact model price

* feat: /v1/responses/comapct test

dto/openai_compaction.go

@@ -0,0 +1,20 @@
+package dto
+
+import (
+	"encoding/json"
+
+	"github.com/QuantumNous/new-api/types"
+)
+
+type OpenAIResponsesCompactionResponse struct {
+	ID        string          `json:"id"`
+	Object    string          `json:"object"`
+	CreatedAt int             `json:"created_at"`
+	Output    json.RawMessage `json:"output"`
+	Usage     *Usage          `json:"usage"`
+	Error     any             `json:"error,omitempty"`
+}
+
+func (o *OpenAIResponsesCompactionResponse) GetOpenAIError() *types.OpenAIError {
+	return GetOpenAIError(o.Error)
+}