Add BLSamplePosition table

Author: gfrn

schemas/ispyb/updates/2025_04_11_Position_blSampleId_positionType.sql

@@ -0,0 +1,15 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2025_05_01_BLSamplePosition.sql', 'ONGOING');
+
+CREATE TABLE `BLSamplePosition` (
+  `positionId` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key (auto-incremented)',
+  `blSampleId` int(11) unsigned NOT NULL COMMENT 'FK, references parent sample',
+  `posX` double DEFAULT NULL,
+  `posY` double DEFAULT NULL,
+  `posZ` double DEFAULT NULL,
+  `recordTimeStamp` datetime DEFAULT NULL COMMENT 'Creation or last update date/time',
+  `positionType` enum('dispensing') COMMENT 'Type of marked position (e.g.: dispensing location)',
+  PRIMARY KEY (`positionId`),
+  CONSTRAINT `BLSamplePosition_fk_blSampleId` FOREIGN KEY (`blSampleId`) REFERENCES `BLSample` (`blSampleId`)
+);
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2025_05_01_BLSamplePosition.sql';