Feature: filter crn can with based on vm resources

[1yam]

This Pr adds add :

• Filter on Crn list to allow user to filter crn from crn list based on a vm resources (vcpus, ram, disk)

Related ClickUp, GitHub or Jira tickets : ALEPH-

Self proofreading checklist

• The new code clear, easy to read and well commented.
• New code does not duplicate the functions of builtin or popular libraries.
• An LLM was used to review the new code and look for simplifications.
• New classes and functions contain docstrings explaining what they provide.
• All new code is covered by relevant tests.

Changes

This pull request enhances the filtering capabilities of the CRN (Compute Resource Node) service by allowing users to filter nodes based on specific VM resource requirements (CPU, memory, disk). To support this, new data models for system usage and VM resources have been introduced, and the filtering logic has been updated accordingly.

Filtering and API Enhancements

• Added a new VmResources model to specify VM requirements (vCPUs, memory in MiB, disk in MiB), and updated the filter_crn method to accept this as an optional parameter. The method now filters nodes based on available resources, ensuring that only nodes meeting the specified criteria are returned. [1] [2] [3] [4]

Data Model Additions

• Introduced several new models (CpuLoad, CoreFrequencies, CpuInfo, MemoryInfo, DiskInfo, UsagePeriod, SystemUsage) to represent detailed system usage statistics for CRNs. These are now included in the CRN model as an optional system_usage field, enabling resource-based filtering. [1] [2] [3]