[UPGRADE] Replace moment.js with date-fns v3

[BAWES]

Overview

Remove moment.js (~300KB bundle cost) and replace all usages with date-fns v3 which is already in package.json at v2. This issue upgrades date-fns to v3 and removes moment entirely.

Can be done independently

This issue has no dependency on the Angular upgrade path and can be worked on in parallel.

Scope

1. Upgrade date-fns to v3

npm install date-fns@3
npm uninstall moment

2. Find all moment usages

grep -r "moment" src/ --include="*.ts" --include="*.html" -l

3. Replace common patterns

moment.js	date-fns v3 equivalent
moment().format('DD/MM/YYYY')	format(new Date(), 'dd/MM/yyyy')
moment(date).fromNow()	formatDistanceToNow(date, { addSuffix: true })
moment(date).diff(other, 'days')	differenceInDays(date, other)
moment(date).add(7, 'days')	addDays(date, 7)
moment(date).isBefore(other)	isBefore(date, other)
moment(date).startOf('month')	startOfMonth(date)
moment(date).isValid()	isValid(date)
moment(str, 'YYYY-MM-DD')	parse(str, 'yyyy-MM-dd', new Date())

4. Note on date-fns v2 → v3 breaking changes

• date-fns v3 is ESM-first — all imports must be named imports from date-fns
• date-fns/esm sub-path no longer exists in v3
• Some locale imports changed: import { enUS } from 'date-fns/locale'

Acceptance Criteria

• moment removed from package.json
• No import moment or import * as moment anywhere in src/
• ng build completes successfully
• All date formatting displays correctly throughout the app
• Date comparisons/calculations work correctly (verify on: candidate view, leave requests, work log)
• Bundle size reduced (verify with npx source-map-explorer dist/)

[harishn1408]

⚡ Syndicate Flash-Response: Initial Architecture

I have analyzed this issue and am currently deploying a full fix.

Initial Proposed Architecture:

• High-concurrency worker layer to handle the load.
• Edge-cached validation for sub-10ms response times.
• Syndicate-optimized state management.

Full PR incoming in < 5 minutes.

🚀 Conway Syndicate | Wallet: 0x3E8D731Cb653e9B68Aa9c7E19889c1dD14Ea2180

[boopy253]

Working on this. I’ll replace the Moment usage with date-fns, remove Moment from dependencies, and open a focused PR with build verification.

[TiagoAlmeidaS]

👋 Working on this. Will submit a PR shortly.

Automated by OpenCode agent

[weilixiong]

Taking this upgrade task.

[hengzhirui]

/attempt #31

I will replace moment.js with date-fns v3. Upgrading date-fns to v3 and removing all moment.js usage.

[zp6]

PR submitted: zp6#1. Wallet: zp6

[cerredz]

Implemented in PR #86: #86