build: allow node package depends on workspace packages (#11963)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Added a unified CLI entry point for server operations and introduced a new CLI executable alias.
  - Centralized and simplified server startup, allowing selection between CLI and server modes.
  - Added static migration module aggregation for easier migration management.

- **Bug Fixes**
  - Improved platform-specific native module loading for better compatibility and reliability.

- **Refactor**
  - Streamlined server build, startup, and artifact management processes.
  - Reorganized and simplified workflow and configuration files for backend services.
  - Transitioned export styles and import mechanisms for native modules to enhance maintainability.

- **Chores**
  - Removed unused dependencies and configuration files.
  - Updated test cases to reflect refined server flavor logic.
  - Adjusted package and build configurations for consistency and clarity.

- **Revert**
  - Removed legacy scripts and loaders no longer needed after refactor.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/workflows/copilot-test.yml

@@ -73,7 +73,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           name: server-native.node
-          path: ./packages/backend/server
+          path: ./packages/backend/native
 
       - name: Prepare Server Test Environment
         env:
@@ -142,7 +142,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           name: server-native.node
-          path: ./packages/backend/server
+          path: ./packages/backend/native
 
       - name: Prepare Server Test Environment
         env: