feat: add killturn to general meta and update related tests

- Introduced a new meta property `killturn` to the GeneralMeta interface.
- Implemented a function `readMetaNumber` to handle the retrieval of numeric values from meta.
- Updated the `mapGeneralRow` function to ensure `killturn` is required and properly handled.
- Modified various tests to include the `killturn` property in the general's meta data.
- Adjusted related action files to utilize the new GeneralMeta type for better type safety.
- Ensured backward compatibility by updating existing test cases across multiple scenarios.

packages/logic/test/scenarios/troops.test.ts

@@ -76,7 +76,7 @@ describe('Troop Management Scenario', () => {
                 items: { horse: null, weapon: null, book: null, item: null },
             },
             triggerState: { flags: {}, counters: {}, modifiers: {}, meta: {} },
-            meta: {},
+            meta: { killturn: 24 },
         };
 
         const snapshot: WorldSnapshot = {