feat(db): add validation stored procedure with THROW errors

NEW/src/JdeScoping.Database/Scripts/048_CreateValidateSearchCriteriaProcedure.sql

@@ -0,0 +1,51 @@
+-- Migration: 048_CreateValidateSearchCriteriaProcedure
+-- Stored procedure for strict validation with THROW errors
+
+IF OBJECT_ID('dbo.usp_ValidateSearchCriteria', 'P') IS NOT NULL
+    DROP PROCEDURE dbo.usp_ValidateSearchCriteria;
+GO
+
+CREATE PROCEDURE dbo.usp_ValidateSearchCriteria(@SearchId INT)
+AS
+BEGIN
+    SET NOCOUNT ON;
+    DECLARE @Criteria VARCHAR(MAX);
+    DECLARE @ErrorMsg NVARCHAR(400);
+
+    -- Get criteria for the search
+    SELECT @Criteria = Criteria
+    FROM dbo.Search
+    WHERE ID = @SearchId;
+
+    -- Validate search exists
+    IF @@ROWCOUNT = 0
+    BEGIN
+        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' not found');
+        THROW 50001, @ErrorMsg, 1;
+    END
+
+    -- Validate criteria not null
+    IF @Criteria IS NULL
+    BEGIN
+        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has no criteria');
+        THROW 50002, @ErrorMsg, 1;
+    END
+
+    -- Validate criteria not empty
+    IF @Criteria = ''
+    BEGIN
+        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has no criteria');
+        THROW 50002, @ErrorMsg, 1;
+    END
+
+    -- Validate JSON format
+    IF ISJSON(@Criteria) = 0
+    BEGIN
+        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has invalid JSON');
+        THROW 50003, @ErrorMsg, 1;
+    END
+
+    -- If we get here, validation passed
+    RETURN 0;
+END
+GO