Migrate examples to latest Meteor 3.4

[nachocodoner]

This PR migrates existing apps in this repo to latest Meteor 3.4.

Notes Offline (formerly Chakra UI)

• Replaced static Chakra UI demo with a functional offline-first notes app
• Removed Chakra UI / Emotion / Framer Motion; replaced with Mantine UI + PostCSS (Chakra UI already demostrated in a skeleton using meteor create)
• Integrated jam:offline for IndexedDB persistence and auto-sync
• Integrated jam:method for optimistic methods with offline queuing
• Integrated jam:pub-sub with global subscription caching
• Integrated jam:soft-delete for recoverable deletion with trash UI
• Integrated Workbox via workbox-webpack-plugin + Rspack for PWA service worker
• Full CRUD with auto-save, search, tags, pin, Markdown preview, export/import, dark mode, keyboard shortcuts

Parties

• Migrate Parties example app from Meteor 2.3.5 to Meteor 3.4 with Rspack bundler
• Convert all server-side MongoDB operations to async (insertAsync, findOneAsync, updateAsync) while keeping client-side minimongo calls synchronous for Tracker reactivity
• Fix publication arrow functions to use regular functions for correct this.userId binding
• Remove accounts-facebook and accounts-twitter (TODO: research its inclusion)
• Upgrade Blaze to v3 (backward-compatible)
• Restyled with latest Bootstrap update

Task Manager (formerly Tailwind CSS)

• Migrate Tailwind CSS example app from Meteor 2.8 to Meteor 3.4 with Rspack bundler
• Replace juliancwirko:postcss Meteor build plugin with Rspack's built-in CSS/PostCSS pipeline
• Upgrade Tailwind CSS from v2 to v3
• Replace Meteor-specific .postcssrc.js with standard postcss.config.js
• Update React rendering from legacy render() to React 18 createRoot API
• Upgrade all npm dependencies to latest versions
• Revamped from a static Tailwind CSS demo into a dynamic task management app
• Added MongoDB collection (tasks) with full CRUD operations (create, update, delete)
• Integrated Meteor-RPC for type-safe methods and publications with Zod schema validation
• Integrated shadcn/ui components (manually installed: Button, Input, Badge, Card, Table, Dialog, Select, DropdownMenu, Label)
• Added React Query via Meteor-RPC hooks (usePublication, useMutation) for reactive data fetching
• Replaced static hardcoded data with reactive dashboard metrics and a filterable task table
• Configured Tailwind CSS with CSS custom properties for shadcn/ui theming

Tic-Tac-Toe

• Migrate Tic-Tac-Toe example app from Meteor 3.0-beta.6 to Meteor 3.4 with Rspack bundler
• Remove all beta version pins from Atmosphere packages to resolve stable 3.4 versions
• Add "modern": true flag to enable ES2020+ module output required by Rspack
• Update React rendering from legacy render() to React 19 createRoot API
• Restyle entire UI with MUI (Material UI) v7 for a polished, user-friendly look

Complex Todos (Svelte)

• Migrate Complex Todos Svelte example app from Meteor 2 to Meteor 3.4 with Rspack bundler
• Replace mdg:validated-method + simpl-schema with jam:method + Zod for method definitions and schema validation
• Update Svelte mounting to use mount()/unmount() API with HMR support
• Convert all server-side MongoDB operations to async (insertAsync, findOneAsync, updateAsync)
• Upgrade all npm dependencies to latest versions, including Svelte 5
• Replaced Bootstrap 5 (CDN) with Skeleton UI v4 + Tailwind CSS v4, using the Cerberus theme
• Migrated all components from Svelte 4 syntax (export let, $:, on:click) to Svelte 5 runes ($props, $state, $derived, onclick)
• Moved login/register from inline navbar form to a Skeleton Dialog modal

NFT Marketplace

• Migrate NFT Marketplace example app from Meteor 2.7.2 to Meteor 3.4 with Rspack bundler
• Update React rendering from legacy render() to React 18+ createRoot API
• Upgrade all npm dependencies to latest versions, including React 18 and Hardhat 2.22+

---

• Restyle the Parties, TicTacToe, ComplesTodos app to showcase using other UI interesting libraries
• Ensure apply to Meteor 3.4.1 core a fix to automatically favor Rspack css pipelines if css imports are detected
• Rework Meteor core CLI to automatically read examples available and clone them effectively with just meteor create (revisit already approach)
• CopySWToPublic to the core for when sw is available and generated?
• Ensure tests are running across the apps that describes them
• Deploy all apps within this repository and update readme.md

[More coming]