feat: wire video renderer pipeline + download endpoint

crates/presentation/src/handlers/wrapup.rs

@@ -152,6 +152,36 @@ pub async fn get_report(
     }
 }
 
+#[utoipa::path(
+    get, path = "/api/v1/wrapups/{id}/video",
+    params(("id" = Uuid, Path, description = "Wrap-up ID")),
+    responses(
+        (status = 200, description = "MP4 video file", content_type = "video/mp4"),
+        (status = 404, description = "Not found or video not generated"),
+    ),
+    security(("bearer_auth" = []))
+)]
+pub async fn get_video(
+    State(state): State<AppState>,
+    Path(id): Path<Uuid>,
+) -> impl IntoResponse {
+    let record = match state.app_ctx.repos.wrapup_repo.get_by_id(&WrapUpId::from_uuid(id)).await {
+        Ok(Some(r)) if r.status == WrapUpStatus::Ready => r,
+        _ => return StatusCode::NOT_FOUND.into_response(),
+    };
+    let _ = record; // used only for status check
+    let video_key = format!("wrapups/{}/video.mp4", id);
+    match state.app_ctx.services.image_storage.get(&video_key).await {
+        Ok(bytes) => (
+            StatusCode::OK,
+            [(axum::http::header::CONTENT_TYPE, "video/mp4"),
+             (axum::http::header::CONTENT_DISPOSITION, "attachment; filename=\"wrapup.mp4\"")],
+            bytes,
+        ).into_response(),
+        Err(_) => StatusCode::NOT_FOUND.into_response(),
+    }
+}
+
 // ── HTML handlers ───────────────────────────────────────────────────────────
 
 fn format_watch_time(minutes: u32) -> String {