[PM-23987] Fix saving to default collections by updating collection lookup (#6122)

* Refactor ICollectionRepository.GetManyByOrganizationIdAsync logic to include default user collections

* Add stored procedure Collection_ReadSharedCollectionsByOrganizationId to retrieve collections by organization ID, excluding default user collections.

* Add GetManySharedCollectionsByOrganizationIdAsync method to ICollectionRepository and its implementations to retrieve collections excluding default user collections.

* Add unit test for GetManySharedCollectionsByOrganizationIdAsync method in CollectionRepositoryTests to verify retrieval of collections excluding default user collections.

* Refactor controllers to use GetManySharedCollectionsByOrganizationIdAsync for retrieving shared collections

* Update unit tests to use GetManySharedCollectionsByOrganizationIdAsync for verifying shared collections retrieval

* Revert CiphersController.CanEditItemsInCollections to use GetManyByOrganizationIdAsync for retrieving organization collections

* Update stored procedures to retrieve only DefaultUserCollection by modifying the WHERE clause in Collection_ReadSharedCollectionsByOrganizationId.sql and its corresponding migration script.

* Update EF CollectionRepository.GetManySharedCollectionsByOrganizationIdAsync to filter collections by SharedCollection

* Update OrganizationUserRepository.GetManyDetailsByOrganizationAsync_vNext to only include Shared collections

* Update comments in stored procedure and migration script to clarify filtering for SharedCollections only

util/Migrator/DbScripts/2025-07-24_00_ReadSharedCollections.sql

@@ -0,0 +1,65 @@
+CREATE OR ALTER PROCEDURE [dbo].[Collection_ReadByOrganizationId]
+    @OrganizationId UNIQUEIDENTIFIER
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    SELECT
+        *
+    FROM
+        [dbo].[CollectionView]
+    WHERE
+        [OrganizationId] = @OrganizationId
+END
+GO
+
+CREATE OR ALTER PROCEDURE [dbo].[Collection_ReadSharedCollectionsByOrganizationId]
+    @OrganizationId UNIQUEIDENTIFIER
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    SELECT
+        *
+    FROM
+        [dbo].[CollectionView]
+    WHERE
+        [OrganizationId] = @OrganizationId AND
+        [Type] = 0 -- SharedCollections only
+END
+GO
+
+CREATE OR ALTER PROCEDURE [dbo].[OrganizationUserUserDetails_ReadByOrganizationId_V2]
+    @OrganizationId UNIQUEIDENTIFIER,
+    @IncludeGroups BIT = 0,
+    @IncludeCollections BIT = 0
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    -- Result Set 1: User Details (always returned)
+    SELECT * 
+    FROM [dbo].[OrganizationUserUserDetailsView] 
+    WHERE OrganizationId = @OrganizationId
+
+    -- Result Set 2: Group associations (if requested)
+    IF @IncludeGroups = 1
+    BEGIN
+        SELECT gu.*
+        FROM [dbo].[GroupUser] gu
+        INNER JOIN [dbo].[OrganizationUser] ou ON gu.OrganizationUserId = ou.Id
+        WHERE ou.OrganizationId = @OrganizationId
+    END
+
+    -- Result Set 3: Collection associations (if requested)  
+    IF @IncludeCollections = 1
+    BEGIN
+        SELECT cu.*
+        FROM [dbo].[CollectionUser] cu
+        INNER JOIN [dbo].[OrganizationUser] ou ON cu.OrganizationUserId = ou.Id
+        INNER JOIN [dbo].[Collection] c ON cu.CollectionId = c.Id
+        WHERE ou.OrganizationId = @OrganizationId 
+            AND c.Type = 0 -- SharedCollections only
+    END
+END
+GO