[CG-5228]

Overview

Resolves #3543

Updates docs/docs/working-with-calm/vscode-extension.md so the documentation reflects the current CALM Canvas (FINOS.calm-vscode-plugin) extension instead of the retired CalmPreview extension:

• Replaces references to CalmPreview, CalmPreview.preview, CalmPreview.logLevel, CalmPreview.customCss, CalmPreview.templateDirectory, .calm.yaml activation, the Docify tab, Mermaid/PlantUML live preview, and non-existent CALM CLI subcommands (calm init, calm generate --platform kubernetes) with accurate CALM Canvas documentation.
• Describes the ReactFlow visual editor workflow using core CALM concepts (Standards, Controls, and Patterns).
• Documents all commands contributed by calm-plugins/vscode/package.json (calm.openCanvas, calm.connectToHub, calm.disconnectFromHub, calm.refreshFromHub, and calm.importSvg), keybindings (Cmd+Shift+K / Ctrl+Shift+K), and calm.* settings (calm.externalAssetsPath, calm.packs.enabled, calm.packs.excludeNodes, calm.hub.url, calm.hub.autoConnect, and calm.hub.selectedNamespaces).

Checklist

• Verify all documented commands, keybindings, and configuration settings match calm-plugins/vscode/package.json
• Verify the documentation uses agreed CALM concepts (Standards, Controls, Patterns)
• Sign-off the commit with git commit -s

[jimthompson5802]

@CG-5228 I'm reviewing this PR. An initial observation, screenshots of the new UI is missing. In the prior version of the documentation there were screenshots of VSCode extension windows, which help orient the user. Is there a reason that screenshots of the UI are not included?

I still have to do more complete review. I just wanted to get this first observation out.