feat(codex): align Search and execution protocol

apps/aether-gateway/src/api/ai/openai.rs

@@ -5,6 +5,7 @@ pub(crate) fn normalized_signature(api_format: &str) -> Option<&'static str> {
         "openai:rerank" => Some("openai:rerank"),
         "openai:responses" => Some("openai:responses"),
         "openai:responses:compact" => Some("openai:responses:compact"),
+        "openai:search" => Some("openai:search"),
         "openai:image" => Some("openai:image"),
         "openai:video" => Some("openai:video"),
         _ => None,
@@ -18,6 +19,7 @@ pub(crate) fn local_path(api_format: &str) -> Option<&'static str> {
         "openai:rerank" => Some("/v1/rerank"),
         "openai:responses" => Some("/v1/responses"),
         "openai:responses:compact" => Some("/v1/responses/compact"),
+        "openai:search" => Some("/v1/alpha/search"),
         "openai:image" => Some("/v1/images/generations"),
         "openai:video" => Some("/v1/videos"),
         _ => None,

apps/aether-gateway/src/api/ai/registry.rs

@@ -15,6 +15,7 @@ const AI_POST_ROUTE_PATTERNS: &[&str] = &[
     "/v1/messages/count_tokens",
     "/v1/responses",
     "/v1/responses/compact",
+    "/v1/alpha/search",
     "/v1/images/generations",
     "/v1/images/edits",
     "/v1/interactions",
@@ -120,6 +121,7 @@ mod tests {
                 "/api/v1/services/embeddings/multimodal-embedding/multimodal-embedding",
             ),
             ("openai:rerank", "openai", "rerank", "/v1/rerank"),
+            ("openai:search", "openai", "search", "/v1/alpha/search"),
             ("jina:rerank", "jina", "rerank", "/v1/rerank"),
         ] {
             assert_eq!(