Show creation timestamps in Inbox details

src-tauri/src/fs.rs

@@ -538,6 +538,7 @@ pub struct GitHubWorkItem {
     pub title: String,
     pub url: String,
     pub state: String,
+    pub created_at: String,
     pub updated_at: String,
     pub labels: Vec<GitHubLabel>,
     pub assignees: Vec<GitHubAssignee>,
@@ -1704,9 +1705,9 @@ fn git_github_work_items_for(
     };
     let limit = limit.clamp(1, 100).to_string();
     let fields = if kind == "pr" {
-        "number,title,url,state,updatedAt,labels,assignees,isDraft"
+        "number,title,url,state,createdAt,updatedAt,labels,assignees,isDraft"
     } else {
-        "number,title,url,state,updatedAt,labels,assignees"
+        "number,title,url,state,createdAt,updatedAt,labels,assignees"
     };
     let mut args = vec![
         kind.to_string(),
@@ -1750,9 +1751,9 @@ fn git_github_work_item_for(
     let repo = format!("{owner}/{name}");
     let number = number.to_string();
     let fields = if kind == "pr" {
-        "number,title,url,state,updatedAt,labels,assignees,isDraft"
+        "number,title,url,state,createdAt,updatedAt,labels,assignees,isDraft"
     } else {
-        "number,title,url,state,updatedAt,labels,assignees"
+        "number,title,url,state,createdAt,updatedAt,labels,assignees"
     };
     let json = gh_checked(
         root,
@@ -2721,6 +2722,8 @@ fn parse_github_work_items(
         url: String,
         state: String,
         #[serde(default)]
+        created_at: String,
+        #[serde(default)]
         updated_at: String,
         #[serde(default)]
         labels: Vec<RowLabel>,
@@ -2738,6 +2741,7 @@ fn parse_github_work_items(
             title: row.title,
             url: row.url,
             state: row.state.to_lowercase(),
+            created_at: row.created_at,
             updated_at: row.updated_at,
             labels: row
                 .labels
@@ -5328,6 +5332,7 @@ mod tests {
             "title": "Promo codes fail to apply",
             "url": "https://github.com/acme/web/issues/5138",
             "state": "OPEN",
+            "createdAt": "2026-08-20T09:00:00Z",
             "updatedAt": "2026-08-27T08:00:00Z",
             "labels": [{"name": "bug", "color": "d73a4a"}],
             "assignees": [{"login": "maya"}]
@@ -5345,6 +5350,9 @@ mod tests {
             "https://avatars.githubusercontent.com/maya?s=64"
         );
         assert!(!items[0].draft);
+        let payload = serde_json::to_value(&items[0]).unwrap();
+        assert_eq!(payload["createdAt"], "2026-08-20T09:00:00Z");
+        assert_eq!(payload["updatedAt"], "2026-08-27T08:00:00Z");
     }
 
     #[test]
@@ -5363,6 +5371,26 @@ mod tests {
         assert_eq!(items[0].repo, "acme/web");
     }
 
+    #[test]
+    fn github_work_item_creation_time_reaches_frontend() {
+        for (kind, resource) in [("pr", "pull"), ("issue", "issues")] {
+            let json = r#"{
+            "number": 12,
+            "title": "Checkout",
+            "url": "https://github.com/acme/web/pull/12",
+            "state": "OPEN",
+            "createdAt": "2026-09-01T08:00:00Z",
+            "updatedAt": "2026-09-11T08:00:00Z"
+        }"#;
+            let json = json.replace("/pull/", &format!("/{resource}/"));
+            let item = parse_github_work_item(&json, kind, "acme/web").unwrap();
+            let payload = serde_json::to_value(item).unwrap();
+            assert_eq!(payload["kind"], kind);
+            assert_eq!(payload["createdAt"], "2026-09-01T08:00:00Z");
+            assert_eq!(payload["updatedAt"], "2026-09-11T08:00:00Z");
+        }
+    }
+
     #[test]
     fn parse_github_work_item_reads_view_shape() {
         let json = r#"{

src/lib/githubTasks.ts

@@ -41,6 +41,7 @@ export type GithubWorkItem = {
   title: string;
   url: string;
   state: string;
+  createdAt?: string;
   updatedAt: string;
   labels: GithubLabel[];
   assignees: GithubAssignee[];

src/surfaces/InboxView.test.ts

@@ -41,6 +41,17 @@ function renderDetail(
 }
 
 describe("InboxDetail layout", () => {
+  it("shows when a PR was created alongside its last update", () => {
+    const markup = renderDetail({
+      ...item({ kind: "pr" }),
+      createdAt: "2026-09-01T08:00:00Z",
+    });
+    expect(markup).toContain("Created ");
+    expect(markup).toContain('dateTime="2026-09-01T08:00:00Z"');
+    expect(markup).toContain("Updated ");
+    expect(renderDetail(item({ kind: "pr" }))).not.toContain("Created ");
+  });
+
   it("keeps issue identity and actions outside the body scroller", () => {
     const markup = renderDetail(item({ projectPath: "/tmp/local-project" }));
     const headerIndex = markup.indexOf("data-inbox-detail-header");

src/surfaces/InboxView.tsx

@@ -1685,6 +1685,17 @@ export function InboxDetail({
                   )}
                 </>
               ) : null}
+              {item.createdAt && formatRelativeTime(item.createdAt) ? (
+                <>
+                  <span aria-hidden>·</span>
+                  <time
+                    dateTime={item.createdAt}
+                    title={new Date(item.createdAt).toLocaleString()}
+                  >
+                    Created {formatRelativeTime(item.createdAt)}
+                  </time>
+                </>
+              ) : null}
               {formatRelativeTime(item.updatedAt) ? (
                 <>
                   <span aria-hidden>·</span>