Add LREM command support for removing list elements by value

[nishanthp]

This PR implements the LREM (List Remove) functionality in list.py, enabling removal of list elements by value with count-based control.

Changes:

• Added lrem function to support Redis LREM command
• Allows removing elements equal to a specified value from Redis lists
• Supports count parameter for controlling removal behavior:
  • count > 0: Remove elements from head to tail
  • count < 0: Remove elements from tail to head
  • count = 0: Remove all matching elements

Usage:

# Remove first 2 occurrences of "value" from head
lrem("mylist", 2, "value")

# Remove first occurrence of "value" from tail
lrem("mylist", -1, "value")

# Remove all occurrences of "value"
lrem("mylist", 0, "value")

[nishanthp]

I was not sure how to add reviewers, so tagging you to review the PR mortensi. Thank you!

[mortensi]

Thanks @nishanthp, we are looking at restructuring the toolset, and eventually reduce the number of exposed tools. As soon as we move forward, we'll review the PR and work on it. Thanks for contributing, I will keep you posted!

[nishanthp]

Thanks @mortensi for the update! Looking forward to collaborating with you as things progress.