✨ feat: refactor environment variable initialization and introduce new constant types for API and context keys

common/model.go

@@ -0,0 +1,21 @@
+package common
+
+import "strings"
+
+var (
+	// OpenAIResponseOnlyModels is a list of models that are only available for OpenAI responses.
+	OpenAIResponseOnlyModels = []string{
+		"o3-pro",
+		"o3-deep-research",
+		"o4-mini-deep-research",
+	}
+)
+
+func IsOpenAIResponseOnlyModel(modelName string) bool {
+	for _, m := range OpenAIResponseOnlyModels {
+		if strings.Contains(m, modelName) {
+			return true
+		}
+	}
+	return false
+}