Remove repo_url from skill invocation analytics events (#44586)

## What changed

Remove `repo_url` from `SkillInvocationEventParams` and stop including it in
`skill_invocation` payloads. Update the analytics test fixtures and expected
serialized payload to match.

GitOrigin-RevId: 06762143fb861a31298fbd8ab737b9b969edfc89

codex-rs/analytics/src/analytics_client_tests.rs

@@ -4442,7 +4442,6 @@ async fn reducer_ingests_skill_invoked_fact() {
                 "skill_scope": "user",
                 "plugin_id": null,
                 "remote_plugin_id": null,
-                "repo_url": null,
                 "thread_id": "thread-1",
                 "turn_id": "turn-1",
                 "invoke_type": "explicit",

codex-rs/analytics/src/client_tests.rs

@@ -146,7 +146,6 @@ fn sample_skill_track_event(thread_id: &str, plugin_id: Option<&str>) -> TrackEv
             skill_scope: None,
             plugin_id: plugin_id.map(str::to_string),
             remote_plugin_id: None,
-            repo_url: None,
             thread_id: Some(thread_id.to_string()),
             turn_id: Some("turn-1".to_string()),
             invoke_type: Some(InvocationType::Explicit),

codex-rs/analytics/src/events.rs

@@ -209,7 +209,6 @@ pub(crate) struct SkillInvocationEventParams {
     pub(crate) skill_scope: Option<String>,
     pub(crate) plugin_id: Option<String>,
     pub(crate) remote_plugin_id: Option<String>,
-    pub(crate) repo_url: Option<String>,
     pub(crate) thread_id: Option<String>,
     pub(crate) turn_id: Option<String>,
     pub(crate) invoke_type: Option<InvocationType>,

codex-rs/analytics/src/reducer.rs

@@ -1283,7 +1283,7 @@ impl AnalyticsReducer {
             invocations,
         } = input;
         for invocation in invocations {
-            let (skill_id, repo_url, skill_scope) = match invocation.location {
+            let (skill_id, skill_scope) = match invocation.location {
                 SkillInvocationLocation::Host { path, scope } => {
                     let skill_scope = match scope {
                         SkillScope::User => "user",
@@ -1305,7 +1305,7 @@ impl AnalyticsReducer {
                         path.as_path(),
                         invocation.skill_name.as_str(),
                     );
-                    (skill_id, repo_url, Some(skill_scope.to_string()))
+                    (skill_id, Some(skill_scope.to_string()))
                 }
                 SkillInvocationLocation::Resource {
                     id,
@@ -1328,7 +1328,7 @@ impl AnalyticsReducer {
                             SkillScope::Admin => "admin",
                         })
                         .map(str::to_owned);
-                    (skill_id, None, skill_scope)
+                    (skill_id, skill_scope)
                 }
             };
             out.push(TrackEventRequest::SkillInvocation(
@@ -1342,7 +1342,6 @@ impl AnalyticsReducer {
                         invoke_type: Some(invocation.invocation_type),
                         model_slug: Some(tracking.model_slug.clone()),
                         product_client_id: Some(tracking.product_client_id.clone()),
-                        repo_url: repo_url.map(String::from),
                         skill_scope,
                         plugin_id: invocation.plugin_id,
                         remote_plugin_id: invocation.remote_plugin_id,