feat(genesis_bridge): revised genesis bridge impl

[mtsitrin]

Description

---

Closes #XXX

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow-up issues.

PR review checkboxes:

I have...

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Targeted PR against the correct branch
• included the correct type prefix in the PR title
• Linked to the GitHub issue with discussion and accepted design
• Targets only one GitHub issue
• Wrote unit and integration tests
• Wrote relevant migration scripts if necessary
• All CI checks have passed
• Added relevant godoc comments
• Add an issue in the e2e-tests repo if necessary

SDK Checklist

• Import/Export Genesis
• Registered Invariants
• Registered Events
• Updated openapi.yaml
• No usage of go map
• No usage of time.Now()
• Used fixed point arithmetic and not float arithmetic
• Avoid panicking in Begin/End block as much as possible
• No unexpected math Overflow
• Used sendCoin and not SendCoins
• Out-of-block compute is bounded
• No serialized ID at the end of store keys
• UInt to byte conversion should use BigEndian

Full security checklist here

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For Reviewer:

• Confirmed the correct type prefix in the PR title
• Reviewers assigned
• Confirmed all author checklist items have been addressed

---

After reviewer approval:

• In case the PR targets the main branch, PR should not be squash merge in order to keep meaningful git history.
• In case the PR targets a release branch, PR must be rebased.

[omritoptix]

nice job!
few small suggestions/comments.

[omritoptix]

possibly a quick win to validate using json checksum.

golang:

package main

import (
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"sort"
)

func getJSONChecksum(filePath string) (string, error) {
	fileContent, err := ioutil.ReadFile(filePath)
	if err != nil {
		return "", err
	}

	var jsonObject map[string]interface{}
	err = json.Unmarshal(fileContent, &jsonObject)
	if err != nil {
		return "", err
	}

	keys := make([]string, 0, len(jsonObject))
	for k := range jsonObject {
		keys = append(keys, k)
	}
	sort.Strings(keys)

	sortedJSON, err := json.Marshal(jsonObject)
	if err != nil {
		return "", err
	}

	hash := sha256.Sum256(sortedJSON)
	return hex.EncodeToString(hash[:]), nil
}

func main() {
	checksum, err := getJSONChecksum("path/to/your/file.json")
	if err != nil {
		fmt.Println("Error:", err)
		return
	}
	fmt.Println("Checksum:", checksum)
}

and roller can use same method for vadlidate it or through cli:

jq -cS . file.json | sha256sum

[mtsitrin]

added separate issue #569

[omritoptix]

do we check somewhere the maximun number of genesis accounts allowed?

[mtsitrin]

on the hub side