feat: Add new strategic actions for nation turns

- Implemented '백성동원' (Mobilize People) action to enhance city defense and gain experience for generals.
- Added '수몰' (Flood) action to damage enemy city defenses and affect diplomatic relations.
- Created '이호경식' (Degrade Relations) action to manipulate diplomatic states between nations.
- Introduced '필사즉생' (Desperate Fight) action to boost training and atmosphere for generals in a nation.
- Developed '허보' (Deception) action to mislead enemy generals and alter their city assignments.

app/game-api/src/turns/commandTable.ts

@@ -129,6 +129,8 @@ class MemoryStateView implements StateView {
                 return `destNation:${req.id}`;
             case 'diplomacy':
                 return `diplomacy:${req.srcNationId}:${req.destNationId}`;
+            case 'diplomacyList':
+                return 'diplomacy:list';
             case 'arg':
                 return `arg:${req.key}`;
             case 'env':