chore: release memory to the OS every hour

[nikhilsinhaparseable]

Summary by CodeRabbit

• Performance & Optimization

  • Improved memory management across query paths with batched response processing and explicit memory-release steps for more stable large-response handling
  • Added a periodic memory-release scheduler to reduce memory retention under load

• New Features

  • Exposed a public memory management module with functions to trigger and initialize periodic memory release

• Chores

  • Added allocator-related dependencies to support the new memory management features