feat: implement F3 CLI to list power table and proportional power at instance (#12698)

* Implement F3 CLI to list power table and proportional power at instance

Implement utility CLIs to:
* get the power table used by F3 at a given instance ID.
* get total proportional power of a list of actors at a given instance
  ID.

These utilities allow us to debug the exact participation power for an
instance without having to manually calculate it or estimate it from
the latest power.

* Update changelog

* Address lint issue

* Regenerate CLI docs

* Take instance ID via flag and actor IDs as args

* Reduce indentation by defiling top level vars

* Work around bug in docsgencli by using one-liner usage

Author: masih

CHANGELOG.md

@@ -16,6 +16,7 @@ This Lotus release candidate introduces the new `ChainIndexer` subsystem, enhanc
 - Implement `EthGetTransactionByBlockNumberAndIndex` (`eth_getTransactionByBlockNumberAndIndex`) and `EthGetTransactionByBlockHashAndIndex` (`eth_getTransactionByBlockHashAndIndex`) methods. ([filecoin-project/lotus#12618](https://github.com/filecoin-project/lotus/pull/12618))
 - `lotus-shed indexes inspect-indexes` now performs a comprehensive comparison of the event index data for each message by comparing the AMT root CID from the message receipt with the root of a reconstructed AMT. Previously `inspect-indexes` simply compared event counts.  Comparing AMT roots instead confirms all the event data is byte-perfect. ([filecoin-project/lotus#12570](https://github.com/filecoin-project/lotus/pull/12570))
 - Reduce size of embedded genesis CAR files by removing WASM actor blocks and compressing with zstd. This reduces the `lotus` binary size by approximately 10 MiB. ([filecoin-project/lotus#12439](https://github.com/filecoin-project/lotus/pull/12439))
+- Implement F3 utility CLIs to list the power table for a given instance and sum the proportional power of a set of actors that participate in a given instance. ([filecoin-project/lotus#12698](https://github.com/filecoin-project/lotus/pull/12698))
 
 ## 🐛 Bug Fix Highlights
 - Add logic to check if the miner's owner address is delegated (f4 address). If it is delegated, the `lotus-shed sectors termination-estimate` command now sends the termination state call using the worker ID. This fix resolves the issue where termination-estimate did not function correctly for miners with delegated owner addresses. ([filecoin-project/lotus#12569](https://github.com/filecoin-project/lotus/pull/12569))