Implement Assertion mechanism

[Nitish-bot]

Implement assertion flow with 2 levels of dispute escalation and all error checking. This can be split into multiple PRs each with a limited scope,

We need to implement Assert -> Dispute -> Resolve flow given the spec in architecture.md in docs

[Nitish-bot]

#7 Solves this partially but there are a few issues unaddressed, that can be worked around in a follow up PR, some of these might deserve their own issue too

• Bun gen:client doesn't work, this is critical for the client transaction building
• We should collect fees on all bonds at init time not finalize time
• Finalize before challenge deadline was an edge case that had a flaky test so it was removed, dig into it and reintroduce a stable version of it
• Any signer can finalize voting outcome arbitrarily, in general the resolution is full of placeholders that need to be filled in
• bonds lock forever if mock llm authority or open_vote or vote finalize never runs add a timeout, we might want to add an abort and refund path but we should think about how this affects incentives to propose correctly
• I didn't understand this comment by @takshakmudgal so repeating here so he can clarify

bonds lock forever if mock llm authority or open_vote or vote finalize never runs add a timeout
abort and refund path