* [download.v2] Recover from unwind panic

* Fix notifications and unwind

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* model tests for snapshot kv

* cursor test

* first failing test

* fix

* fix lint

* remove fmt

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Fix headers subscriptions for download.v2

* Use datadir to place nodes database for sentry

* Enable request chaining only after initial cycle

* Support for baikal and other in sentry

* Properly solve problem of stage1

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Improvements to stage1 in download.v2

* Stop timer earlier

* Stop timer earlier

* Print apends

* Fix traceCursor

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* validate body

* validate body

* save

* save

* body deliveries messages handling into staged sync

* body deliveries messages handling into staged sync

* body deliveries messages handling into staged sync

* body deliveries messages handling into staged sync

* body deliveries messages handling into staged sync

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* penalize right after verifyUncles and stop, don't batch

* Improvements to stage1 in download.v2

* Stop timer earlier

* Stop timer earlier

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Extra prints

* Remove printouts

* Printing back

* Fix the stuck stage 1

* Not allow peers to connect more than once

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Not increase permit on announcements

* Init permits

* Deadlines

* Fix NPEs

* Fix NPE

* Fix findPeer

* Reduce max permits to 4

* 8 max permits, but 30 seconds timeout

* Back to 4

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Append/AppendDup

* Print appends

* Remove printing

* Increase permit on announcements

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Baikal testnet configuration

* Fixes

* Change AsMessage signature

* Fixes in t8ntool

* More updates

* Fix misspelling

* Skip eip1559 transition test

* More bootnodes

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Introduce TraceCallSet bucket and fill it up

* Fix compile

* Reset TraceCallSet

* Add database.verbosity

* Warn about dropped messages

* Unwind for call traces

* Fixes for headers download

* Fix for the slow stage 3

* Remove wakeup channels

* Permit system for peer load balancing

* Reduce aggressiveness

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Fix debug levels

* try this

* remove adapter

* fix

* fix bodies stage

* [download.v2] Fix endianness of Difficulty in Status message

* Add comments

* Finish stage to use RwTx

* Print header age in stage 1

* Print new block messages

* TopSeenHeight to be updated from any header

* block in the future handling and skip the test

* Fix downloader test

* Fix test

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Prevent the leak

* Default storage mode, fix leak again

* TopSeenHeight to be updated from any header

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Fix error message about write protection

* Clean up of trace_filter

* Add CallTraces to Execution Stage

* Fix compile

* Say something

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* save state

* snapshot update works

* save state

* snapshot migrator

* tx test

* save state

* migrations stages refactor

* refactor snapshot migrator

* compilation fixed

* integrate snapshot migrator

* goerli sync headers

* debug async snapshotter on goerly

* move verify headers, remove experiments, fix remove old snapshot

* save state

* refactor snapshotsync injection

* fix deadlock

* replace snapshot generation stage logic to migrate method

* change done for body snapshot

* clean

* clean&&change deleted value

* clean

* fix hash len

* fix hash len

* remove one of wrap methods, add remove snapshots on start

* add err check

* fix shadowing

* stages unwind order debug

* matryoshka experiments

* steam test

* fix build

* fix test

* fix lint

* fix test

* fix test datarace

* add get test

* return timeout

* fix mdbx overlap

* fix after merge

* change epoch size

* clean todo

* fix

* return testdata

* added return from sndownloader gorutine

* fix review comments

* Fix

* More info

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>