Delivery and DMARC Troubleshooting (closes #420)

crates/directory/src/core/mod.rs

@@ -198,6 +198,7 @@ impl Permission {
             Permission::OauthClientUpdate => "Modify OAuth clients",
             Permission::OauthClientDelete => "Remove OAuth clients",
             Permission::AiModelInteract => "Interact with AI models",
+            Permission::Troubleshoot => "Perform troubleshooting",
         }
     }
 }

crates/directory/src/lib.rs

@@ -264,7 +264,7 @@ pub enum Permission {
     OauthClientOverride,
 
     AiModelInteract,
-    // WARNING: add new ids at the end (TODO: use static ids)
+    Troubleshoot, // WARNING: add new ids at the end (TODO: use static ids)
 }
 
 pub type Permissions = Bitset<{ Permission::COUNT.div_ceil(std::mem::size_of::<usize>()) }>;