refactor: always allow alias for all spaces

Drop the space.voting.aliased opt-in so every space accepts
vote/proposal/update-proposal/delete-proposal signed by a valid
alias of the author. Promote flag-proposal to EVM as well (it was
already allowed on Starknet). See snapshot-labs/workflow#793.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: bonustrack

src/helpers/alias.ts

@@ -20,7 +20,8 @@ const OPTIONAL_TYPES_EXECUTABLE_BY_ALIAS = [
   'vote-string',
   'proposal',
   'update-proposal',
-  'delete-proposal'
+  'delete-proposal',
+  'flag-proposal'
 ] as const;
 
 // These types can be executed with a Starknet alias

src/ingestor.ts

@@ -91,21 +91,19 @@ export default async function ingestor(req) {
       return Promise.reject('Invalid space id');
     }
 
-    let aliased = false;
     if (!['settings', 'alias', 'profile', 'delete-space'].includes(type)) {
       if (!message.space) return Promise.reject('unknown space');
 
       try {
         const space = await getSpace(message.space, false, message.network);
         if (!space) return Promise.reject('unknown space');
         network = space.network;
-        if (space.voting?.aliased) aliased = true;
       } catch (e: any) {
         return Promise.reject(e.message);
       }
     }
 
-    await verifyAlias(type, body, aliased);
+    await verifyAlias(type, body, true);
 
     // Check if signature is valid
     try {