centralize openai responses alias handling

apps/aether-gateway/src/ai_pipeline/finalize/internal/sync_to_stream.rs

@@ -110,11 +110,7 @@ fn maybe_bridge_openai_image_sync_json_to_stream(
 }
 
 fn normalize_api_format(value: &str) -> String {
-    match value.trim().to_ascii_lowercase().as_str() {
-        "openai:cli" => "openai:responses".to_string(),
-        "openai:compact" => "openai:responses:compact".to_string(),
-        other => other.to_string(),
-    }
+    crate::ai_pipeline::normalize_legacy_openai_format_alias(value)
 }
 
 fn is_standard_api_format(value: &str) -> bool {

apps/aether-gateway/src/ai_pipeline/planner/candidate_affinity.rs

@@ -176,11 +176,7 @@ pub(crate) async fn rank_eligible_local_execution_candidates(
 }
 
 fn normalize_api_format_alias(value: &str) -> String {
-    match value.trim().to_ascii_lowercase().as_str() {
-        "openai:cli" => "openai:responses".to_string(),
-        "openai:compact" => "openai:responses:compact".to_string(),
-        other => other.to_string(),
-    }
+    crate::ai_pipeline::normalize_legacy_openai_format_alias(value)
 }
 
 fn api_format_matches(left: &str, right: &str) -> bool {

apps/aether-gateway/src/ai_pipeline/planner/candidate_eligibility.rs

@@ -322,11 +322,7 @@ fn transport_key_supports_api_format(
 }
 
 fn normalize_api_format_alias(value: &str) -> String {
-    match value.trim().to_ascii_lowercase().as_str() {
-        "openai:cli" => "openai:responses".to_string(),
-        "openai:compact" => "openai:responses:compact".to_string(),
-        other => other.to_string(),
-    }
+    crate::ai_pipeline::normalize_legacy_openai_format_alias(value)
 }
 
 fn api_format_matches(left: &str, right: &str) -> bool {

apps/aether-gateway/src/ai_pipeline/planner/passthrough/provider/family/request.rs

@@ -36,10 +36,14 @@ pub(crate) fn resolve_same_format_provider_transport_unsupported_reason_for_trac
     transport: &GatewayProviderTransportSnapshot,
     provider_api_format: &str,
 ) -> Option<&'static str> {
-    let provider_api_format = match provider_api_format.trim().to_ascii_lowercase().as_str() {
+    let provider_api_format = match crate::ai_pipeline::normalize_legacy_openai_format_alias(
+        provider_api_format,
+    )
+    .as_str()
+    {
         "openai:chat" => "openai:chat",
-        "openai:responses" | "openai:cli" => "openai:responses",
-        "openai:responses:compact" | "openai:compact" => "openai:responses:compact",
+        "openai:responses" => "openai:responses",
+        "openai:responses:compact" => "openai:responses:compact",
         "claude:chat" => "claude:chat",
         "claude:cli" => "claude:cli",
         "gemini:chat" => "gemini:chat",

apps/aether-gateway/src/ai_pipeline/planner/standard/openai/responses/decision/request.rs

@@ -162,10 +162,11 @@ pub(crate) async fn resolve_local_openai_responses_candidate_payload_parts(
     let direct_auth = if kiro_auth.is_some() {
         None
     } else if same_format {
-        match provider_api_format {
+        match crate::ai_pipeline::normalize_legacy_openai_format_alias(provider_api_format).as_str()
+        {
             "gemini:cli" => resolve_local_gemini_auth(transport),
             "claude:cli" => resolve_local_standard_auth(transport),
-            "openai:responses" | "openai:responses:compact" | "openai:cli" | "openai:compact" => {
+            "openai:responses" | "openai:responses:compact" => {
                 resolve_local_openai_bearer_auth(transport)
             }
             _ => None,
@@ -535,15 +536,7 @@ pub(crate) async fn resolve_local_openai_responses_candidate_payload_parts(
 }
 
 fn api_format_alias_matches(left: &str, right: &str) -> bool {
-    normalize_api_format_alias(left) == normalize_api_format_alias(right)
-}
-
-fn normalize_api_format_alias(value: &str) -> String {
-    match value.trim().to_ascii_lowercase().as_str() {
-        "openai:cli" => "openai:responses".to_string(),
-        "openai:compact" => "openai:responses:compact".to_string(),
-        other => other.to_string(),
-    }
+    crate::ai_pipeline::legacy_openai_format_alias_matches(left, right)
 }
 
 #[allow(clippy::too_many_arguments)]

apps/aether-gateway/src/ai_pipeline/planner/standard/openai/responses/decision/support.rs

@@ -340,15 +340,7 @@ pub(crate) async fn materialize_local_openai_responses_candidate_attempts(
 }
 
 fn api_format_alias_matches(left: &str, right: &str) -> bool {
-    normalize_api_format_alias(left) == normalize_api_format_alias(right)
-}
-
-fn normalize_api_format_alias(value: &str) -> String {
-    match value.trim().to_ascii_lowercase().as_str() {
-        "openai:cli" => "openai:responses".to_string(),
-        "openai:compact" => "openai:responses:compact".to_string(),
-        other => other.to_string(),
-    }
+    crate::ai_pipeline::legacy_openai_format_alias_matches(left, right)
 }
 pub(crate) async fn mark_skipped_local_openai_responses_candidate(
     state: &AppState,

apps/aether-gateway/src/ai_pipeline/planner/standard/request_body_diagnostics.rs

@@ -71,11 +71,7 @@ fn diagnose_request_body_build_failure(
 }
 
 fn is_openai_responses_client_format(client_api_format: &str) -> bool {
-    let normalized = client_api_format.trim().to_ascii_lowercase();
-    matches!(
-        normalized.as_str(),
-        "openai:responses" | "openai:responses:compact" | "openai:cli" | "openai:compact"
-    )
+    crate::ai_pipeline::is_openai_responses_family_format(client_api_format)
 }
 
 fn diagnose_same_format_provider_request_body_failure(

apps/aether-gateway/src/ai_pipeline/pure/mod.rs

@@ -26,8 +26,9 @@ pub(crate) use aether_ai_pipeline::api::{
     find_kiro_real_thinking_end_tag_at_buffer_end, find_kiro_real_thinking_start_tag,
     force_upstream_streaming_for_provider, generic_decision_missing_exact_provider_request,
     implicit_sync_finalize_report_kind, is_core_error_finalize_kind, is_matching_stream_request,
-    kiro_crc32, map_claude_stop_reason, map_openai_reasoning_effort_to_claude_output,
-    map_openai_reasoning_effort_to_gemini_budget,
+    is_openai_responses_family_format, is_openai_responses_format, kiro_crc32,
+    legacy_openai_format_alias_matches, map_claude_stop_reason,
+    map_openai_reasoning_effort_to_claude_output, map_openai_reasoning_effort_to_gemini_budget,
     maybe_build_openai_chat_cross_format_sync_product_from_normalized_payload,
     maybe_build_openai_responses_cross_format_sync_product_from_normalized_payload,
     maybe_build_openai_responses_same_family_sync_body_from_normalized_payload,
@@ -36,7 +37,7 @@ pub(crate) use aether_ai_pipeline::api::{
     maybe_build_standard_same_format_sync_body_from_normalized_payload,
     maybe_build_standard_sync_finalize_product_from_normalized_payload,
     normalize_claude_request_to_openai_chat_request,
-    normalize_gemini_request_to_openai_chat_request,
+    normalize_gemini_request_to_openai_chat_request, normalize_legacy_openai_format_alias,
     normalize_openai_responses_request_to_openai_chat_request,
     normalize_provider_private_report_context, normalize_provider_private_response_value,
     normalize_standard_request_to_openai_chat_request, parse_direct_request_body,