Return preplot metadata via the API

lib/www/server/lib/db/line/list.js

@@ -45,7 +45,7 @@ async function list (projectId, opts = {}) {
 					AND UNBOUNDED FOLLOWING
 			)
 		)
-		SELECT s.*, incr, remarks, pl.ntba
+		SELECT s.*, incr, remarks, pl.ntba, pl.meta
 		FROM summary s
 		INNER JOIN preplot_lines pl ON pl.class = 'V' AND s.line = pl.line
 		ORDER BY ${sortKey} ${sortDir}

lib/www/server/spec/openapi.yaml

@@ -301,6 +301,9 @@ components:
                 ntba:
                     type: boolean
                     description: Not to be acquired flag. If `true`, all the points in this line are ignored in production statistics.
+                meta:
+                    type: object
+                    description: Arbitrary JSON data associated with this shotpoint.
 
 
         Shotpoint: