Add blSampleId FK col in XrayCentringResult which is the actual sample to which the result belongs (#271)

Author: KarlLevik

schemas/ispyb/updates/2025_05_01_XrayCentringResult_fk_blSampleId.sql

@@ -0,0 +1,11 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2025_05_01_XrayCentringResult_fk_blSampleId.sql', 'ONGOING');
+
+ALTER TABLE XrayCentringResult
+  ADD blSampleId int(11) unsigned COMMENT 'The BLSample attributed for this x-ray centring result, i.e. the actual sample even for multi-pins',
+  ADD CONSTRAINT XrayCentringResult_fk_blSampleId
+  FOREIGN KEY (blSampleId)
+      REFERENCES BLSample(blSampleId)
+          ON DELETE SET NULL
+          ON UPDATE CASCADE;
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2025_05_01_XrayCentringResult_fk_blSampleId.sql';