Add document types filtering and rename ISMS to GOVERNANCE

Adds 5 new document types (PLAN, REGISTER, RECORD, REPORT, TEMPLATE), renames ISMS to GOVERNANCE, and implements type-based filtering across GraphQL, MCP, and frontend. Includes migration, enum updates, filter implementation with SQL array support, and frontend dropdown UI with Relay refetch pattern.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

apps/console/src/hooks/forms/useDocumentForm.tsx

@@ -6,7 +6,7 @@ export const documentSchema = z.object({
   title: z.string().min(1, "Title is required"),
   content: z.string().min(1, "Content is required"),
   approverIds: z.array(z.string()).min(1, "At least one approver is required"),
-  documentType: z.enum(["OTHER", "ISMS", "POLICY", "PROCEDURE"]),
+  documentType: z.enum(["OTHER", "GOVERNANCE", "POLICY", "PROCEDURE", "PLAN", "REGISTER", "RECORD", "REPORT", "TEMPLATE"]),
   classification: z.enum(["PUBLIC", "INTERNAL", "CONFIDENTIAL", "SECRET"]),
 });