feat(ci): add integration and golden features for CI tests

Add empty feature flags to rc crate to enable CI integration and golden
test jobs to run successfully. These features will be used to gate
real integration tests in subsequent development.

Author: overtrue

crates/cli/Cargo.toml

@@ -48,6 +48,13 @@ humansize.workspace = true
 mime_guess.workspace = true
 glob.workspace = true
 
+[features]
+default = []
+# Enable integration tests that require a running S3-compatible server
+integration = []
+# Enable golden tests for output format verification
+golden = []
+
 [dev-dependencies]
 tempfile.workspace = true