Implement the page description

[cchirag]

Summary

The goal of this task is:

• Implement the page description.
• Ensure thread-safe reads and writes.
• Document the complete process and the reason behind every decision.

Proposed Design / Approach

Please follow the document and implement the page description.

Acceptance Criteria

• A complete implementation of the page description.
• Complete documentation of the whole process.

Related Component

• core
• index
• transaction
• docs
• testing
• ttl