refactor: enforce package boundaries

app/game-engine/test/runtimeTrace.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import { createRuntimeTrace } from '../src/turn/runtimeTrace.js';
+
+describe('runtime trace adapter', () => {
+    it('maps environment filters to domain trace subjects', () => {
+        const trace = createRuntimeTrace({
+            CORE_AI_TRACE_GENERAL_IDS: '3,7',
+            CORE_AI_TRACE_NATION_IDS: '11',
+            CORE_WAR_TECH_TRACE_NATION_IDS: '13',
+            CORE_BATTLE_FIXTURE_TRACE: '1',
+        });
+
+        expect(trace.isEnabled('AI_ACTION_PATCH_TRACE', { generalIds: [7] })).toBe(true);
+        expect(trace.isEnabled('AI_ACTION_PATCH_TRACE', { nationIds: [11] })).toBe(true);
+        expect(trace.isEnabled('AI_WAR_TRACE', { generalIds: [3] })).toBe(true);
+        expect(trace.isEnabled('WAR_TECH_TRACE', { nationIds: [13] })).toBe(true);
+        expect(trace.isEnabled('AI_WAR_FIXTURE_CORE')).toBe(true);
+        expect(trace.isEnabled('AI_WAR_TRACE', { generalIds: [9] })).toBe(false);
+        expect(
+            createRuntimeTrace({ CORE_AI_TRACE_GENERAL_IDS: ' 7' }).isEnabled('AI_WAR_TRACE', { generalIds: [7] })
+        ).toBe(false);
+    });
+
+    it('preserves the legacy line protocol', () => {
+        const write = vi.fn();
+        const trace = createRuntimeTrace({}, write);
+
+        trace.write('AI_WAR_TRACE', { generalId: 7 });
+
+        expect(write).toHaveBeenCalledWith('AI_WAR_TRACE {"generalId":7}\n');
+    });
+});