support paged launcher history queries

src/launcher/launcher.service.ts

@@ -428,18 +428,34 @@ export class LauncherService {
   }
 
   listBuildJobs(query: ListLauncherBuildJobsQuery = {}) {
+    const paged = Boolean(query.page || query.limit || query.target || query.since);
     const page = toPositiveInt(query.page, 1);
     const limit = Math.min(toPositiveInt(query.limit, 30), 100);
     const since = query.since ? new Date(query.since) : null;
+    const where = {
+      ...(query.target ? { target: query.target } : {}),
+      ...(since && Number.isFinite(since.getTime()) ? { createdAt: { gte: since } } : {}),
+    };
 
-    return this.prisma.launcherBuildJob.findMany({
-      where: {
-        ...(query.target ? { target: query.target } : {}),
-        ...(since && Number.isFinite(since.getTime()) ? { createdAt: { gte: since } } : {}),
-      },
-      orderBy: { createdAt: 'desc' },
-      skip: (page - 1) * limit,
-      take: limit,
+    if (!paged) {
+      return this.prisma.launcherBuildJob.findMany({
+        orderBy: { createdAt: 'desc' },
+        take: 30,
+      });
+    }
+
+    return this.prisma.$transaction(async (tx) => {
+      const [jobs, total] = await Promise.all([
+        tx.launcherBuildJob.findMany({
+          where,
+          orderBy: { createdAt: 'desc' },
+          skip: (page - 1) * limit,
+          take: limit,
+        }),
+        tx.launcherBuildJob.count({ where }),
+      ]);
+
+      return { jobs, total, page, limit };
     });
   }