♻️ refactor: relocate src/server backend modules to apps/server package

Rebuilt on current canary: git mv the 8 server subtrees (services, routers,
modules, globalConfig, utils, runtimeConfig, workflows, featureFlags) into
@lobechat/server, with @/server/* dual-path alias, database vitest aliases,
and instrumentation import fixup.

apps/server/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@lobechat/server",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "type-check": "tsc --noEmit"
+  }
+}

apps/server/src/modules/AgentRuntime/__tests__/RuntimeExecutors.test.ts

@@ -3763,9 +3763,9 @@ describe('RuntimeExecutors', () => {
 
       // Import real implementations directly from source (bypassing the @lobechat/model-runtime mock)
       const { consumeStreamUntilDone: realConsume } =
-        await import('../../../../../packages/model-runtime/src/utils/consumeStream');
+        await import('../../../../../../packages/model-runtime/src/utils/consumeStream');
       const { createCallbacksTransformer } =
-        await import('../../../../../packages/model-runtime/src/core/streams/protocol');
+        await import('../../../../../../packages/model-runtime/src/core/streams/protocol');
 
       // Use real consumeStreamUntilDone so the stream is actually consumed
       vi.mocked(consumeStreamUntilDone).mockImplementation(realConsume);

apps/server/src/modules/AssistantStore/index.test.ts

@@ -188,7 +188,6 @@ describe('AssistantStore', () => {
     global.fetch = vi.fn().mockRejectedValue(new Error('something else'));
     const store = new AssistantStore();
 
-     
     vi.spyOn(console, 'error').mockImplementation(() => {});
 
     await expect(store.getAgentIndex()).rejects.toThrow('something else');