feat(f3): log when gaining/losing participation leases

[Stebalien]

Proposed Changes

Log whenever we start/stop participating for a storage miner in F3. Given that we use overlapping leases, we expect that we'll start participating for a miner on start then continue to participate over time.

This could get a bit noisy for setups that constantly switch between different lotus nodes but there's not much I can do about that and this will really help with debugging.

Checklist

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• Update CHANGELOG.md or signal that this change does not need it per contribution conventions
• New features have usage guidelines and / or documentation updates in
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• Tests exist for new functionality or change in behavior
• CI is green

[rvagg]

ok, but it'd be nice to get t in there for testnet prefix; we need a MustNewAddress(id) for this kind of thing.

[Stebalien]

ok, but it'd be nice to get t in there for testnet prefix; we need a MustNewAddress(id) for this kind of thing.

I just removed the f0 prefix. I agree we should have a better way to do this, but I don't want to have to deal with creating/formatting an address just for logging. And an ID is sufficient here.