refactor(server): decrypt license with provided aes key (#12570)

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

- **New Features**
  - Added support for a new AES key for license management, improving license encryption and decryption processes.

- **Bug Fixes**
  - Improved error messages and handling when activating expired or invalid licenses.

- **Refactor**
  - Updated license decryption logic to use a fixed AES key instead of deriving one from the workspace ID.
  - Added validation for environment variable values to prevent invalid configurations.

- **Tests**
  - Enhanced license-related tests to cover new key usage and updated error messages.
  - Updated environment variable validation tests with clearer error messages.

- **Chores**
  - Updated environment variable handling for improved consistency.
  - Set production environment variable explicitly in build configuration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tools/cli/src/webpack/index.ts

@@ -601,6 +601,9 @@ export function createNodeTargetConfig(
           );
         },
       }),
+      new webpack.DefinePlugin({
+        'process.env.NODE_ENV': '"production"',
+      }),
     ]),
     stats: { errorDetails: true },
     optimization: { nodeEnv: false },