* Remove stuff out of the runtime that does not belong there.
There might be more, but it is a start.
* White space fixes.
* Fix tests.
* Leave whitespace in ui tests alone.
* Add back zstd for no reason.
* Fix browser wasm (hopefully)
* Indentation fix.
* Prepare request-response for PoV fetching.
* Drop old PoV distribution.
* WIP: Fetch PoV directly from backing.
* Backing compiles.
* Runtime access and connection management for PoV distribution.
* Get rid of seemingly dead code.
* Implement PoV fetching.
Backing does not yet use it.
* Don't send `ConnectToValidators` for empty list.
* Even better - no need to check over and over again.
* PoV fetching implemented.
+ Typechecks
+ Should work
Missing:
- Guide
- Tests
- Do fallback fetching in case fetching from seconding validator fails.
* Check PoV hash upon reception.
* Implement retry of PoV fetching in backing.
* Avoid pointless validation spawning.
* Add jaeger span to pov requesting.
* Add back tracing.
* Review remarks.
* Whitespace.
* Whitespace again.
* Cleanup + fix tests.
* Log to log target in overseer.
* Fix more tests.
* Don't fail if group cannot be found.
* Simple test for PoV fetcher.
* Handle missing group membership better.
* Add test for retry functionality.
* Fix flaky test.
* Spaces again.
* Guide updates.
* Spaces.