fix logging rate limits and add new pool scripts

[aelmanaa]

This pull request introduces significant improvements to Solana token pool ownership management and enhances the usability of CLI scripts and output formatting. The main changes are the addition of a two-step pool ownership transfer process, a new CLI command for ownership acceptance, and improved display of token rate limits.

Token Pool Ownership Management and CLI Enhancements:

Major new features and improvements:

Pool Ownership Transfer Process

• Updated the ccip-lib/svm/README.md to document a secure, two-step pool ownership transfer process, requiring both proposal by the current owner and explicit acceptance by the new owner. The documentation now includes detailed usage examples, best practices, and instructions for verifying ownership.

New CLI Command

• Added ccip-scripts/svm/pool/accept-ownership.ts, a new CLI script that enables the proposed owner to accept token pool ownership. This script guides users through verifying their eligibility, checking balances, validating pending transfers, and finalizing the transfer, with robust error handling and user feedback.

User Experience and Output Improvements

Rate Limit Display Formatting

• Enhanced the get-chain-config CLI output to display token rate limit values (capacity, rate, current bucket value) in both raw units and human-readable token amounts, using a new formatting helper. [1] [2]
• Added a formatTokenAmount helper method to get-chain-config.ts to format token amounts according to their decimal precision for improved readability.

These changes collectively improve the security, usability, and transparency of token pool administration and monitoring on Solana.