[FEATURE] Automatically stop a node from signalling #20037
Description
Problem Statement
Currently, a node will keep signalling for proposals indefinitely when the GOVERNANCE_PROPOSER_PAYLOAD_ADDRESS is set. The reason for setting this over using the Admin API is that it is long lived beyond restarts. Which prevents a node operator from having to remember to call the admin API if there's currently an active signalling going on after a restart.
Proposed Solution
When a certain signalling proposal has been brought to governance, automatically stop signalling for it (and on startup check if the payload address has already been brought to governance previously).
Example Use Case
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Alternative Solutions
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Additional Context
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