feat: panics upon startup when RPC issues occur include the offending chain

[tkporter]

Description

Some quick low hanging fruit to make debugging easier in the future. Today (https://discord.com/channels/935678348330434570/1273582453889699843) some chains were having RPC issues and it caused an agent deploy to panic upon startup. Debugging this was hard because the panic message just indicates an error is occurring, but doesn't say what the offending chain is!

Examples:

• https://cloudlogging.app.goo.gl/puQk7hm4fXyJhYKs8
• https://cloudlogging.app.goo.gl/5qZrbc2Ww4LWQXWC6
• https://cloudlogging.app.goo.gl/ZL7mKbBzzJaePtty9

All these panic happen when constructing the cursor, which isn't yet done in an indexing task. The quick and easy fix is to just use expect instead of unwrap

We still unwrap in a few places, but mostly in places that aren't susceptible to flaky RPC issues, e.g. reading from a HashMap that we know should always have an entry, etc

Drive-by changes

Related issues

Backward compatibility

Testing

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Latest commit: 5aec9b01dd1f5a036f53fc563f4043f726df9b39

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 70.60%. Comparing base (9680efc) to head (5aec9b0). Report is 2 commits behind head on main.

Additional details and impacted files

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