Phase A: Zustand store cutover (remove Redux)

[iduuck]

Summary

Implements Phase A of the Redux → Zustand migration: the planner no longer uses redux or react-redux. State remains the existing Immutable State driven by the same root reducer and action creators.

Changes

• src/store/createPlannerStore.js: Vanilla Zustand slice holding plannerState; dispatch(action) runs src/reducers/reducer.js and updates the slice. Exposes getState, subscribe, and bound namespaces (projectActions, viewer2DActions, viewer3DActions, …) matching the previous connect output.
• src/store/bindActionCreators.js: Small replacement for Redux bindActionCreators (plain actions only; same as before).
• src/react-planner.jsx: Removed connect; subscribes to the planner store and re-renders when plannerState reference changes. Optional plannerStore, initialPlannerState, and locale props. stateExtractor defaults to identity when omitted (host no longer needs an outer Immutable map).
• demo/src/renderer.jsx: Creates one createPlannerStore instance and passes it as plannerStore; removed Provider / createStore.
• package.json: Added zustand, removed redux and react-redux. build-demo and start set NODE_OPTIONS=--openssl-legacy-provider so webpack 4 runs on Node 17+.
• demo/webpack.config.js: Vendor chunk uses zustand instead of redux packages.

Plugin API

Plugins still receive (store, stateExtractor) where store has dispatch, getState (returns planner Immutable state), and subscribe.

Builds

npm run build (clean + demo + lib + es) succeeds in this environment.

  

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