Two UX defaults users hit on first drop:
1. Default node size was ~200x100 (Comfy's default), making the HTML
overlay invisible. Bumped to 720x900 on fresh create. Existing
workflows keep their saved size (only the max-with-current is
applied, gated by an _uscgSizeInitialized flag so the size override
doesn't fight user resizes).
2. Output Preview panel defaulted to 450px which dominated the UI on
smaller nodes. Reduced to 175px (~8 lines of JSON visible at the
11px/1.4-leading default font). The drag handle still lets users
grow it.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
