Add Liquid Staking Action to the Solana Plugin

[FWangZil]

Is your feature request related to a problem? Please describe.

Currently, there are various liquid staking protocols on Solana, but users or developers often need to build dedicated front-end solutions or switch between multiple platforms to compare APYs and select the appropriate protocol before staking. This process is tedious and increases front-end development complexity, making it cumbersome for users.

Describe the solution you'd like

• Add the ability for liquid staking to the existing ElizaOS Solana plugin, simplifying the process of building staking requests for users without requiring specialized front-end logic.

Describe alternatives you've considered

• Continue relying on each protocol’s custom front-end or having developers integrate multiple protocols manually. This leads to high complexity and development cost.
• Have users manually compare different platforms’ APYs, which can be error-prone and inconvenient.

Additional context