Add optional release IDs to cloud plugin source locations (#61393)

## What changed

Add `release_id: Option<String>` to `PluginSourceLocation::Cloud` to carry the opaque release ID selected by the cloud catalog for a plugin declaration. Update catalog and discovery test fixtures to supply the new field, including a populated release ID in catalog reconciliation tests.

GitOrigin-RevId: 1d60e25bd5fb8efd84e6e825305ad68b847fc1ee

codex-rs/core-plugins/src/catalog.rs

@@ -77,6 +77,8 @@ pub enum PluginSourceLocation {
     Cloud {
         resource_uri: String,
         bundle_uri: Option<String>,
+        /// Opaque release ID selected by the cloud catalog for this declaration.
+        release_id: Option<String>,
     },
     Executor {
         /// Executor environment that owns `root`.

codex-rs/core-plugins/src/catalog_tests.rs

@@ -25,6 +25,7 @@ fn cloud_plugin(remote_id: &str) -> PluginCatalogEntry {
         locations: vec![PluginSourceLocation::Cloud {
             resource_uri: format!("plugin://{remote_id}"),
             bundle_uri: None,
+            release_id: Some("release-1".to_string()),
         }],
     }
 }

codex-rs/core/tests/suite/executor_discovery_v2.rs

@@ -1155,6 +1155,7 @@ impl PluginProvider for Cloud {
                         locations: vec![PluginSourceLocation::Cloud {
                             resource_uri: "plugin://plugin_demo".into(),
                             bundle_uri: None,
+                            release_id: None,
                         }],
                     }]
                 },

codex-rs/ext/mcp/src/cloud_plugin_tests.rs

@@ -458,6 +458,7 @@ fn cloud_catalog() -> PluginCatalog {
             locations: vec![codex_core_plugins::PluginSourceLocation::Cloud {
                 resource_uri: "plugin://plugin_remote".to_string(),
                 bundle_uri: None,
+                release_id: None,
             }],
         }],
         ..Default::default()

codex-rs/ext/mcp/src/plugin/discovery_tests.rs

@@ -33,6 +33,7 @@ async fn merged_mcp_declarations_require_an_executor_location() -> anyhow::Resul
         locations: vec![PluginSourceLocation::Cloud {
             resource_uri: "plugin://plugin_example".to_string(),
             bundle_uri: None,
+            release_id: None,
         }],
     };
     let projections = v2_metadata_from_catalog(&entry, &config.features);

codex-rs/ext/mcp/src/plugin_contributor_state_tests.rs

@@ -75,6 +75,7 @@ fn cloud_plugin(remote_id: &str) -> PluginCatalogEntry {
         locations: vec![PluginSourceLocation::Cloud {
             resource_uri: format!("plugin://{remote_id}"),
             bundle_uri: None,
+            release_id: None,
         }],
     }
 }

codex-rs/ext/mcp/tests/plugin_mcp.rs

@@ -768,6 +768,7 @@ async fn run_cloud_plugin_projection_scenarios() -> anyhow::Result<()> {
                         locations: vec![PluginSourceLocation::Cloud {
                             resource_uri: "plugin://plugin_notes".into(),
                             bundle_uri: None,
+                            release_id: None,
                         }],
                     }],
                     ..Default::default()