HIP-1313: High-volume entity creation

[Dosik13]

Description:
Implements HIP-1313 — High-Volume Throttles for entity creation transactions.

• Add SetHighVolume(bool) / GetHighVolume() methods to the base Transaction type
• Wire the HighVolume field through to the protobuf TransactionBody in build() and _BuildTransaction() for all 14 supported transaction types
• Update protobuf definitions to include the new high_volume field on TransactionBody

Supported Transactions

AccountCreate, ContractCreate, TokenCreate, TopicCreate, FileCreate, FileAppend, ScheduleCreate, TokenAirdrop, TokenAssociate, TokenClaimAirdrop, TokenMint, TransferTransaction, AccountAllowanceApprove, HookStore

Related issue(s):

Fixes #1596

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[lfdt-bot]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[codecov]

Codecov Report

❌ Patch coverage is 86.48649% with 5 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
sdk/transaction_record.go	82.14%	5 Missing ⚠️

Files with missing lines	Coverage Δ
sdk/transaction.go	69.48% <100.00%> (-4.02%)	⬇️
sdk/transaction_record.go	49.72% <82.14%> (-20.09%)	⬇️

... and 79 files with indirect coverage changes

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 120 complexity . 73 duplication

Metric	Results
Complexity	120
Duplication	73

View in Codacy

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