feat: support Gemini CLI v1internal quota

crates/aether-provider-transport/src/gemini_cli/mod.rs

@@ -0,0 +1,25 @@
+mod request;
+mod url;
+
+pub use request::{
+    build_gemini_cli_v1internal_request, resolve_gemini_cli_project_id,
+    GeminiCliRequestEnvelopeSupport, GeminiCliRequestEnvelopeUnsupportedReason,
+};
+pub use url::{
+    build_gemini_cli_v1internal_url, GeminiCliRequestUrlAction,
+    GEMINI_CLI_RETRIEVE_USER_QUOTA_PATH, GEMINI_CLI_USER_AGENT,
+    GEMINI_CLI_V1INTERNAL_PATH_TEMPLATE,
+};
+
+use crate::snapshot::GatewayProviderTransportSnapshot;
+
+pub const GEMINI_CLI_PROVIDER_TYPE: &str = "gemini_cli";
+pub const GEMINI_CLI_V1INTERNAL_ENVELOPE_NAME: &str = "gemini_cli:v1internal";
+
+pub fn is_gemini_cli_provider_transport(transport: &GatewayProviderTransportSnapshot) -> bool {
+    transport
+        .provider
+        .provider_type
+        .trim()
+        .eq_ignore_ascii_case(GEMINI_CLI_PROVIDER_TYPE)
+}