Add computer_use feature requirement key (#19071)

## Summary
- add the `computer_use` requirements-only feature key
- include it in generated config schema output
- cover the new key in feature metadata tests

## Testing
- `cargo test -p codex-features`
- `just write-config-schema`
- `just fmt`
- `just fix -p codex-features`

cc @xl-openai

---------

Co-authored-by: Dylan Hurd <dylan.hurd@openai.com>

codex-rs/core/config.schema.json

@@ -378,6 +378,9 @@
             "collaboration_modes": {
               "type": "boolean"
             },
+            "computer_use": {
+              "type": "boolean"
+            },
             "connectors": {
               "type": "boolean"
             },
@@ -2532,6 +2535,9 @@
         "collaboration_modes": {
           "type": "boolean"
         },
+        "computer_use": {
+          "type": "boolean"
+        },
         "connectors": {
           "type": "boolean"
         },

codex-rs/features/src/lib.rs

@@ -164,6 +164,10 @@ pub enum Feature {
     ///
     /// Requirements-only gate: this should be set from requirements, not user config.
     BrowserUse,
+    /// Allow Codex Computer Use.
+    ///
+    /// Requirements-only gate: this should be set from requirements, not user config.
+    ComputerUse,
     /// Temporary internal-only flag for PS-backed remote plugin catalog development.
     RemotePlugin,
     /// Show the startup prompt for migrating external agent config into Codex.
@@ -868,6 +872,12 @@ pub const FEATURES: &[FeatureSpec] = &[
         stage: Stage::Stable,
         default_enabled: true,
     },
+    FeatureSpec {
+        id: Feature::ComputerUse,
+        key: "computer_use",
+        stage: Stage::Stable,
+        default_enabled: true,
+    },
     FeatureSpec {
         id: Feature::RemotePlugin,
         key: "remote_plugin",

codex-rs/features/src/tests.rs

@@ -153,6 +153,10 @@ fn browser_controls_are_stable_and_enabled_by_default() {
     assert_eq!(Feature::BrowserUse.stage(), Stage::Stable);
     assert_eq!(Feature::BrowserUse.default_enabled(), true);
     assert_eq!(feature_for_key("browser_use"), Some(Feature::BrowserUse));
+
+    assert_eq!(Feature::ComputerUse.stage(), Stage::Stable);
+    assert_eq!(Feature::ComputerUse.default_enabled(), true);
+    assert_eq!(feature_for_key("computer_use"), Some(Feature::ComputerUse));
 }
 
 #[test]