Disable daemon auto start by default
https://github.com/openai/codex/issues/48050

Index: codex-rs/features/src/lib.rs
--- codex-rs/features/src/lib.rs.orig
+++ codex-rs/features/src/lib.rs
@@ -941,7 +941,7 @@ pub const FEATURES: &[FeatureSpec] = &[
         id: Feature::DaemonAutoStart,
         key: "daemon_auto_start",
         stage: Stage::Stable,
-        default_enabled: true,
+        default_enabled: false,
     },
     FeatureSpec {
         id: Feature::TranscriptV2,
