Dashboard data store - Adding the store [1/3]

[n-lark]

Description

Layer 1 of the stack. Plumbing only. Nothing reads from the store yet, so dashboards behave as before.

• nodes/store/reactive.js - a proxy-backed store where writing a value is the change event.
• Injection - ui-base injects it at global.dashboard on startup, idempotent across base nodes and redeploys, rehydrates after restart.
• Tests - 30 unit + 4 ui-base injection integration tests.

Related Issue(s)

Closes https://github.com/FlowFuse/engineering/issues/249

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production
• Link to Changelog Entry PR, or note why one is not needed.

Labels

• Includes a DB migration? -> add the area:migration label

[colinl]

Is there information publicly available on what this is about? The Flowfuse/engineering issue is not accessible.