Migrate ingest and API paths to string IDs

internal/api/ingest.go

@@ -47,14 +47,14 @@ func (h ingestHandlers) handleLogBundle(w http.ResponseWriter, r *http.Request)
 	}
 
 	var req struct {
-		AssetID     int64   `json:"asset_id"`
+		AssetID     string  `json:"asset_id"`
 		CollectedAt string  `json:"collected_at"`
 		Source      *string `json:"source"`
 		Components  []struct {
 			VendorSerial string  `json:"vendor_serial"`
 			Vendor       *string `json:"vendor"`
 			Model        *string `json:"model"`
-			LotID        *int64  `json:"lot_id"`
+			LotID        *string `json:"lot_id"`
 			Firmware     *string `json:"firmware_version"`
 		} `json:"components"`
 	}
@@ -64,7 +64,7 @@ func (h ingestHandlers) handleLogBundle(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
-	if req.AssetID <= 0 {
+	if strings.TrimSpace(req.AssetID) == "" {
 		writeError(w, http.StatusBadRequest, "asset_id is required")
 		return
 	}