fix: sync codex field (#6018)

setting/operation_setting/channel_affinity_setting.go

@@ -36,12 +36,33 @@ type ChannelAffinitySetting struct {
 	Rules                 []ChannelAffinityRule `json:"rules"`
 }
 
+// Keep Codex CLI passthrough aligned with upstream. Codex uses lower-case
+// header names, while HTTP matching here is case-insensitive.
+// Request session/thread headers:
+// https://github.com/openai/codex/commit/7c7b4861d88960f7e3bd5b7f30f8351be666dd84
+// Responses metadata headers/client_metadata:
+// https://github.com/openai/codex/commit/14df0e8833aad0d6d78287954b61ffac67af936c
+// x-codex-turn-state response/request round trip:
+// https://github.com/openai/codex/commit/ebdd8795e924a8149b616e46ca2ed7848c207a4b
 var codexCliPassThroughHeaders = []string{
 	"Originator",
 	"Session_id",
+	"Thread_id",
+	"Session-Id",
+	"Thread-Id",
+	"X-Client-Request-Id",
 	"User-Agent",
 	"X-Codex-Beta-Features",
+	"X-Codex-Turn-State",
 	"X-Codex-Turn-Metadata",
+	"X-Codex-Window-Id",
+	"X-Codex-Parent-Thread-Id",
+	//"X-Codex-Installation-Id",
+	"X-OpenAI-Subagent",
+	"X-OpenAI-Memgen-Request",
+	//"X-OAI-Attestation",
+	"X-ResponsesAPI-Include-Timing-Metrics",
+	"X-OpenAI-Internal-Codex-Responses-Lite",
 }
 
 var claudeCliPassThroughHeaders = []string{
@@ -74,6 +95,20 @@ func buildPassHeaderTemplate(headers []string) map[string]interface{} {
 	}
 }
 
+func buildCodexPassHeaderTemplate() map[string]interface{} {
+	requestHeaders := make([]string, 0, len(codexCliPassThroughHeaders))
+	requestHeaders = append(requestHeaders, codexCliPassThroughHeaders...)
+	return map[string]interface{}{
+		"operations": []map[string]interface{}{
+			{
+				"mode":        "pass_headers",
+				"value":       requestHeaders,
+				"keep_origin": true,
+			},
+		},
+	}
+}
+
 var channelAffinitySetting = ChannelAffinitySetting{
 	Enabled:               true,
 	SwitchOnSuccess:       true,
@@ -90,7 +125,7 @@ var channelAffinitySetting = ChannelAffinitySetting{
 			},
 			ValueRegex:            "",
 			TTLSeconds:            0,
-			ParamOverrideTemplate: buildPassHeaderTemplate(codexCliPassThroughHeaders),
+			ParamOverrideTemplate: buildCodexPassHeaderTemplate(),
 			SkipRetryOnFailure:    true,
 			IncludeUsingGroup:     true,
 			IncludeRuleName:       true,