Remove as any

[frouaix]

Co-authored-by: Copilot copilot@github.com

Description

Brief description of changes.

Type of Change

• Bug fix
• New feature
• Documentation update
• Refactoring
• Build/tooling change

Validation

• pnpm build passes
• pnpm build:examples passes
• Manual verification completed (if applicable)

Checklist

• Code follows project conventions
• Documentation updated if needed
• No unrelated changes included

[Copilot]

Pull request overview

Refactors several areas of the Vitrine monorepo to remove as any casts by introducing properly typed helpers and APIs in core rendering/event code and updating demos/GUI accordingly.

Changes:

• GUI slider: replace props-mutation drag state (as any) with a WeakMap-backed drag state helper.
• Core: add typed APIs to avoid as any for transform stack mutation, tooltip extraction, and canvas state operations (shadow/filter/blend/clip).
• Demo: tighten blend mode typing by using BlendMode and removing as any.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/gui/src/GUI/slider/transformSlider.ts	Replaces props as any drag state storage with a typed WeakMap state.
packages/demo/demos/line-styles.ts	Uses BlendMode type and removes blendMode as any.
packages/core/src/transform.ts	Adds TransformStack.setCurrent() to avoid mutating private internals via as any.
packages/core/src/events.ts	Removes props as any tooltip checks by returning typed tooltip results.
packages/core/src/core/renderer-immediate.ts	Routes shadow/filter/blend/clip through RenderContext methods and uses setCurrent() instead of as any.
packages/core/src/core/context.ts	Extends RenderContext/Canvas2DContext with typed shadow/filter/blend/clip helpers.