fix(api): populate cpuCount/memoryMB/diskSizeMB/createdAt in snapshot create response

POST /sandboxes/{id}/snapshots was returning zero values for the four new
required SnapshotInfo fields. Populate them from the source sandbox, which
already has VCpu, RamMB, TotalDiskSizeMB in memory at the point of return.

Author: adababys

packages/api/internal/handlers/snapshot_template_create.go

@@ -18,6 +18,8 @@ import (
 	"github.com/e2b-dev/infra/packages/shared/pkg/ginutils"
 	"github.com/e2b-dev/infra/packages/shared/pkg/id"
 	"github.com/e2b-dev/infra/packages/shared/pkg/logger"
+	"time"
+
 	"github.com/e2b-dev/infra/packages/shared/pkg/telemetry"
 	sharedUtils "github.com/e2b-dev/infra/packages/shared/pkg/utils"
 )
@@ -161,5 +163,9 @@ func (a *APIStore) PostSandboxesSandboxIDSnapshots(c *gin.Context, sandboxID api
 	c.JSON(http.StatusCreated, api.SnapshotInfo{
 		SnapshotID: snapshotID,
 		Names:      names,
+		CpuCount:   int32(sbx.VCpu),
+		MemoryMB:   int32(sbx.RamMB),
+		DiskSizeMB: int32(sbx.TotalDiskSizeMB),
+		CreatedAt:  time.Now(),
 	})
 }