feat: export TypeScript types for better DX

[happy-edge]

Summary

Export TypeScript types so integrators get proper autocomplete and type checking.

Before

import { init } from '@jup-ag/plugin';
// ❌ No type exports - integrators have to define their own types or use 'any'

After

import { init } from '@jup-ag/plugin';
import type { IInit, FormProps, QuoteResponse, SwapResult } from '@jup-ag/plugin';

// ✅ Full autocomplete and type checking
const config: IInit = {
  formProps: { /* autocomplete works */ },
  onSuccess: ({ txid, swapResult }) => { /* typed! */ }
};

Exported Types

Main configuration:

• IInit - Main initialization options
• FormProps - Swap form configuration
• JupiterPlugin - Window.Jupiter interface

Display options:

• WidgetPosition - Widget placement options
• WidgetSize - Widget size options
• SwapMode - ExactIn/ExactOut/ExactInOrOut
• DEFAULT_EXPLORER - Explorer options

Callback types:

• IForm - Form state passed to onFormUpdate
• QuoteResponse - Quote data in callbacks
• SwapResult - Result passed to onSuccess
• SwappingStatus - Transaction status
• Screens - Screen state for onScreenUpdate

Impact

Better DX for TypeScript users with zero runtime changes.

[vercel]

Someone is attempting to deploy a commit to the wowcats Team on Vercel.

A member of the Team first needs to authorize it.

[thejesh23]

Good DX improvement, but one thing to verify before merge:

DEFAULT_EXPLORER is in the export type { ... } block, but the SCREAMING_SNAKE_CASE name strongly suggests it's a runtime constant, not a type. A type-only export erases at runtime, so import { DEFAULT_EXPLORER } from '@jup-ag/plugin' would resolve to undefined. If it's a const, it needs a regular export; if it's actually a type alias, the name is misleading and worth renaming.

Same caveat applies to SwapMode, WidgetPosition, WidgetSize if any of them are TS enums rather than string-literal unions — enums need value re-export to be usable as SwapMode.ExactIn at runtime.

Easy way to confirm: check src/types/index.d.ts for each — if it's export const / export enum, move it out of the export type block.