* Encode createdAt as a string for JS support

* Cleanup old retention-windows and increase history-retention-window to 7 days

* fix tests

Speed up startup time in "already migrated" cases by eliminating unnecessary
ledger range traversals.

Specifically, this includes the following changes:

 - Fee stats windows cannot exceed the history retention window, as this doesn't
   make sense.

 - Migrations that are already applied are not added to the list of
   "multi-migrations".

 - Fee stats window building conforms to the migration interface to simplify
   code.

 - LedgerSeqRange has been refactored to always use a value reference.

As a result, if all migrations have occurred, the traversal only occurs over the fee window.

* Use GetLedgerRange to get the latest ledger

* Remove latestLedger key from meta table

* Remove latestLedger key from meta table - 2

* Fix failing unittest - 1

* Remove cache check condition

* Fix failing unittest - 2

* Uncomment failing ledger entry test

* Remove db.SessionInterface param

* Fix failing unittest

* Cache ledger range - 1

* Cache ledger range - 2

* Cache ledger range - 3

* Cache ledger range - 4

* Fix failing test

* Fix failing test - 2

* Fix linting - 1

* Fix linting - 2

* Reduce the time further

* Remove creating transaction for GetLedgerRange

* Remove creating transaction for GetLedgerRange - 2

* Remove creating transaction for GetLedgerRange - 3

* Fix failing unittest - 1

* Fix failing tests - 2

* Update cmd/soroban-rpc/internal/db/ledger.go

Co-authored-by: tamirms <tamirms@gmail.com>

* Add check for empty result in ledger range

* Add a cache check on GetLatestLedgerSequence call

* Move cache read to DB function

* Move cache read to DB function - 2

* Revert "Move cache read to DB function - 2"

This reverts commit f7ebe3e.

* Lock cache before creating tx

* Fix failing test

* Add migration

* Fix failing test

* Refactor NewTx and NewCachedTx

* Refactor NewTx and NewCachedTx - 2

* Refactor NewTx and NewCachedTx - 3

* Refactor NewTx and NewCachedTx - 4

---------

Co-authored-by: tamirms <tamirms@gmail.com>

…#285)

* Replace internal error package

* Replace internal error package in getEvents

* remove nolint

* go fmt

* Fix lint pt1

* Fix lint pt2

* Fix lint pt3 - remove global var in getEvents

* Fix lint pt4

* Fix config lint

* Fix daemon lint

* Fix db lint

* Fix feewindow lint

* Fix ingest lint

* Fix ledgerbucketwindow lint

* Fix ingest lint - 2

* Fix preflight lint

* Small fixes - 1

* Clean up

* gci file

* bump horizon to latest release tag

* go mod tidy

* Remove RELEASING.md

* Remove images

#291)

* simulate-transaction: remove confusing Cost field in response

* Appease linter

* Add endLedger in GetEventResponse

* Add Cursor to response and deprecate PagingToken

* Update cursor logic and tests

* update CHANGELOG.md

Add transaction hash in the transaction object in the getTransactions response

* Update docker file to build 2 images based on argument

* Update docker-build and makefile

* remove duplicate assignments