feat: add unified formatting standard

[ECWireless]

See #545 for all details. Original PR created by @Roaring30s .

[vercel]

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Project	Deployment	Actions	Updated (UTC)
explorer-arbitrum-one	Ready	Preview, Comment	Mar 30, 2026 2:05am

[Copilot]

Pull request overview

This PR introduces centralized number/address formatting utilities and migrates many Explorer UI surfaces (voting, treasury, orchestrators, transactions, charts, and account views) away from ad-hoc formatting/divisors to shared formatters and constants.

Changes:

• Added utils/numberFormatters.ts (LPT/ETH/USD/percent/round/number) with accompanying tests.
• Added utils/web3.ts (address helpers, wei conversions, percent precision constants) and migrated call sites from @lib/utils.
• Replaced scattered manual formatting across multiple pages/components (percent divisors, LPT/ETH display, address/hash shortening).

Reviewed changes

Copilot reviewed 50 out of 51 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
utils/web3.ts	New web3/address + wei conversion helpers and percent precision constants
utils/web3.test.ts	Unit tests for new utils/web3 helpers
utils/voting.ts	Removes local formatPercent; switches fromWei import to @utils/web3
utils/numberFormatters.ts	New centralized formatting utilities for LPT/ETH/USD/percent/etc.
utils/numberFormatters.test.ts	Unit tests for new number formatting utilities
tsconfig.json	Adds @utils/* path alias
pages/voting/create-poll.tsx	Switches fromWei import to @utils/web3
pages/voting/[poll].tsx	Uses shared formatters/constants instead of local/manual formatting
pages/treasury/create-proposal.tsx	Uses formatLPT + fromWei/toWei from @utils/web3
pages/treasury/[proposal].tsx	Uses shared formatters/constants; moves web3 helpers to @utils/web3
pages/migrate/orchestrator.tsx	Switches address/hash formatting to @utils/web3
pages/migrate/delegator/index.tsx	Switches address/hash formatting to @utils/web3
pages/migrate/broadcaster.tsx	Switches address/hash formatting to @utils/web3
pages/index.tsx	Replaces hardcoded inflation divisor with PERCENTAGE_PRECISION_BILLION
pages/api/score/[address].tsx	Moves checkAddressEquality to @utils/web3
pages/api/l1-delegator/[address].tsx	Moves EMPTY_ADDRESS to @utils/web3
pages/_app.tsx	Removes global numbro.setDefaults initialization
lib/utils.tsx	Removes web3/formatting helpers now housed in @utils/web3
lib/utils.test.ts	Removes tests for moved helpers; imports EMPTY_ADDRESS from @utils/web3
lib/api/treasury.ts	Switches fromWei import to @utils/web3
lib/api/ens.ts	Switches formatAddress import to @utils/web3
layouts/main.tsx	Switches EMPTY_ADDRESS/formatAddress imports to @utils/web3
layouts/account.tsx	Switches checkAddressEquality import to @utils/web3
hooks/useSwr.tsx	Switches formatAddress import to @utils/web3
components/TxStartedDialog/index.tsx	Switches formatAddress/fromWei imports to @utils/web3
components/TxConfirmedDialog/index.tsx	Switches formatAddress/fromWei imports to @utils/web3
components/Treasury/TreasuryVotingWidget/index.tsx	Replaces various percent/LPT formatting with shared formatters
components/Treasury/TreasuryVoteTable/index.tsx	Standardizes weight formatting with shared formatters
components/Treasury/TreasuryVoteTable/Views/VoteItem.tsx	Switches formatTransactionHash import to @utils/web3
components/Treasury/TreasuryVoteTable/TreasuryVotePopover.tsx	Uses formatNumber for vote counts
components/TransactionsList/index.tsx	Replaces numbro/manual formatting with shared formatters/constants
components/TransactionBadge/index.tsx	Switches formatTransactionHash import to @utils/web3
components/StakeTransactions/index.tsx	Uses formatLPT and formatAddress from new utils
components/Search/index.tsx	Switches formatAddress import to @utils/web3
components/RoundStatus/index.tsx	Replaces numbro formatting with shared formatters
components/Profile/index.tsx	Switches formatAddress import to @utils/web3
components/PollVotingWidget/index.tsx	Uses shared percent + voting power formatting
components/PerformanceList/index.tsx	Replaces numbro formatting with formatNumber/formatPercent + web3 address formatting
components/OrchestratorList/index.tsx	Replaces numbro/manual percent formatting and divisors with shared formatters/constants
components/OrchestratingView/index.tsx	Replaces numbro/manual formatting with shared formatters/constants
components/HistoryView/index.tsx	Replaces numbro/manual formatting with shared formatters/constants
components/ExplorerChart/index.tsx	Moves most subtitle/axis formatting to shared formatters
components/DelegatingWidget/index.tsx	Uses formatLPT and fromWei from new utils
components/DelegatingWidget/ProjectionBox.tsx	Uses shared formatters for ROI, principle, fees/rewards
components/DelegatingWidget/InputBox.tsx	Switches fromWei import to @utils/web3
components/DelegatingWidget/Input.tsx	Replaces hardcoded divisors with percent precision constants
components/DelegatingWidget/Header.tsx	Switches formatAddress import to @utils/web3
components/DelegatingView/index.tsx	Replaces numbro/manual formatting with shared formatters
components/Claim/index.tsx	Switches formatAddress import to @utils/web3
components/AccountCell/index.tsx	Switches formatAddress import to @utils/web3
components/Account/index.tsx	Switches formatAddress import to @utils/web3

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