fix: client didn't get rotated when creating a new pool

[patricios-space]

No description provided.

[Copilot]

Pull request overview

This PR fixes TON client rotation when creating/using connection pools by moving from a single shared ConnectionPool to per-node pools keyed by node index, ensuring each node can maintain its own long-lived pool.

Changes:

• Replace chain.pool with chain.pools map[int]*liteclient.ConnectionPool to track pools per node.
• Update pool lifecycle management: create pools per node on demand and stop all pools on Close().

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

[ogtownsend]

This scoped { does not release the read lock at the end of the } block, defer is only triggered when functions return, so i think this will deadlock on line 475 with c.cacheMu.Lock()

[ogtownsend]

tested this in go playground: https://goplay.tools/snippet/w5sy6rGXJLA

[patricios-space]

Good to know. Thought this worked differently. Too much Rust 🦀

[ogtownsend]

RC for the potential deadlock

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.