Replacement for https://github.com/Comfy-Org/ComfyUI_frontend/pull/9364
## Summary
Add a generic mechanism for widgets to reactively display upstream
linked values when disabled, with concrete implementations for curve and
imagecrop widgets.
## Changes
- What: When a widget input is linked to an upstream node, the widget
enters a disabled state and displays the upstream node's current value
reactively. This is built as a two-layer system:
- Infrastructure layer: Resolve link origin info (originNodeId,
originOutputName) in buildSlotMetadata, pass it through
SimplifiedWidget.linkedUpstream, and provide a generic useUpstreamValue
composable that reads upstream values from widgetValueStore.
- Widget layer: Each widget type provides its own ValueExtractor to
interpret upstream data. singleValueExtractor handles simple
type-matched values (e.g. CurvePoint[]); boundsExtractor composes a
Bounds object from either a single upstream widget or four individual
x/y/width/height number widgets.
- Curve widget: shows upstream curve points in read-only mode
- ImageCrop widget: shows upstream bounding box with disabled crop
handles and number inputs
- CurveEditor and WidgetBoundingBox: gain disabled prop support
## Adapting future widgets
The system is designed so that any widget needing upstream value display
only needs to:
1. Accept widget: SimplifiedWidget as a prop (provides linkedUpstream
automatically)
2. Call useUpstreamValue(() => widget.linkedUpstream, extractor) with a
suitable extractor
3. Use singleValueExtractor(typeGuard) for single-value types, or write
a custom ValueExtractor for composite cases like boundsExtractor
4. Compute an effectiveValue that switches between upstream and local
based on disabled state
No infrastructure changes are needed — linkedUpstream is already
populated for all widget types that have a corresponding input slot.
## Review Focus
- The buildSlotMetadata helper is shared between extractVueNodeData and
refreshNodeSlots — verify the graph ref is reliably available in both
paths
- boundsExtractor composing from 4 individual number widgets
(x/y/width/height) — this handles the BBox→ImageCrop case where upstream
exposes separate widgets rather than a single Bounds object
## Screenshots
https://github.com/user-attachments/assets/dbc57a44-c5df-44f0-acce-d347797ee8fb
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9851-feat-reactive-upstream-value-display-for-disabled-curve-and-imagecrop-widgets-3226d73d36508134b386ddc9b9f1266b)
by [Unito](https://www.unito.io)
## Summary
Address several trivial CodeRabbit-filed issues: type guard extraction,
ESLint globals, curve editor optimizations, and type relocation.
## Changes
- **What**: Extract `isSingleImage()` type guard in WidgetImageCompare;
add `__DISTRIBUTION__`/`__IS_NIGHTLY__` to ESLint globals and remove
stale disable comments; remove unnecessary `toFixed(4)` from curve path
generation; optimize `histogramToPath` with array join; move
`CurvePoint` type to curve domain
- Fixes#9175
- Fixes#8281
- Fixes#9116
- Fixes#9145
- Fixes#9147
## Review Focus
All changes are mechanical/trivial. Curve path output changes from
fixed-precision to raw floats — SVG handles both fine.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9196-fix-address-trivial-CodeRabbit-issues-3126d73d365081f19a5ce20305403098)
by [Unito](https://www.unito.io)
