Expose alias field and set/remove mutations in console API

Adds an alias field to Document, Audit, and TrustCenterFile types.
Introduces setTrustCenterAlias and removeTrustCenterAlias mutations
with proper authorization and error handling.

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

pkg/server/api/console/v1/gqlgen.yaml

@@ -41,3 +41,6 @@ models:
   EmailAddr:
     model:
       - "go.probo.inc/probo/pkg/server/gqlutils/types/mail.AddrScalar"
+  TrustCenterAlias:
+    model:
+      - "go.probo.inc/probo/pkg/server/api/console/v1/types.TrustCenterAlias"