feat: add webhook permissions

crates/delta/src/routes/webhooks/webhook_edit.rs

@@ -35,11 +35,13 @@ pub async fn webhook_edit(
     let DataEditWebhook {
         name,
         avatar,
+        permissions,
         remove,
     } = data;
 
     let mut partial = PartialWebhook {
         name,
+        permissions,
         ..Default::default()
     };
 

crates/delta/src/routes/webhooks/webhook_edit_token.rs

@@ -33,11 +33,13 @@ pub async fn webhook_edit_token(
     let DataEditWebhook {
         name,
         avatar,
-        remove,
+        permissions,
+        remove
     } = data;
 
     let mut partial = PartialWebhook {
         name,
+        permissions,
         ..Default::default()
     };
 

crates/delta/src/routes/webhooks/webhook_execute.rs

@@ -29,8 +29,7 @@ pub async fn webhook_execute(
     let webhook = webhook_id.as_webhook(db).await.map_err(Error::from_core)?;
     webhook.assert_token(&token).map_err(Error::from_core)?;
 
-    // TODO: webhooks can currently always send masquerades, files, embeds, reactions (interactions)
-    // TODO: they can also mention anyone
+    data.validate_webhook_permissions(webhook.permissions)?;
 
     let channel = legacy_db.fetch_channel(&webhook.channel_id).await?;
     let message = channel