refactor(pulse): rename Pulse → Echo and PulseScheduler → Pulse #2606
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Summary & Rationale
Pulse has two distinct functionalities: the scheduler component (under active development) and the delayed execution aka "request & fulfill" component (on hold for now).
Chatted with Ali on this topic, and it feels confusing to have both products share the same name since they are not really related to each other. It's ambiguous what's being referred to when someone talks about Pulse, both internally and externally.
Furthermore, the name "Pulse" makes more sense when referring to a scheduler (updating feeds on a heartbeat, keeping a finger on the pulse.)
Thus, in this PR, we rename the Pulse Scheduler product to inherit the name Pulse -- we'll refer to it simply as Pulse going forward.
We also give the request & fulfill product the (temporary) name Echo, I think it fits the product well (receiving a call back at a later time.) But this is just an idea, keen to hear other people's opinions :) another idea I had for the name was Chronos, the Greek god of time, fitting in with our Greek mythology theme.
TLDR - to make naming more consistent:
Implementation details
target_chains/ethereum/contracts/contracts/pulsetotarget_chains/ethereum/contracts/contracts/echotarget_chains/ethereum/contracts/contracts/pulse/schedulertotarget_chains/ethereum/contracts/contracts/pulseIScheduler.sol) to avoid confusion in the git history, and it should be okay to keep the user facing contracts named Scheduler. But we can change this to Pulse as well if we want.How has this been tested?