feat: gate telemetry behind Cargo feature flags (#8119)

Signed-off-by: Rodolfo Olivieri <rolivier@redhat.com>
Signed-off-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Douwe Osinga <douwe@squareup.com>

crates/goose/src/lib.rs

@@ -21,8 +21,10 @@ pub mod logging;
 pub mod mcp_utils;
 pub mod model;
 pub mod oauth;
+#[cfg(feature = "otel")]
 pub mod otel;
 pub mod permission;
+#[cfg(feature = "telemetry")]
 pub mod posthog;
 pub mod prompt_template;
 pub mod providers;