[Parity] Complete declarative prop coverage for Two.js objects

[jonobr1]

Summary

Audit every public writable Two.js property and expose the scene-relevant properties through the corresponding React component types and update path.

The current prop unions are manually curated and have fallen behind the Two.js API.

Known omissions

• Path and path-derived shapes: mask, clip, strokeAttenuation
• Text: mask, clip, strokeAttenuation
• Points: strokeAttenuation
• Group and SVG: mask, beginning, ending, strokeAttenuation
• Rectangle and rectangle-derived effects: origin
• Sprite.src: Two.js accepts a URL string or Two.Texture; the React prop currently accepts only a string

Read-only/internal properties such as renderer state should not be exposed merely because they exist on the instance.

Related work

• Mask relationship ergonomics remain tracked in Feature Request: Add useClipMask hook for declarative clipping masks #9.
• Prop update/reset behavior should use the shared reconciliation work rather than another per-component implementation.

Acceptance criteria

• Add a checked property matrix for every exported component against the supported Two.js version.
• Expose all scene-relevant writable properties with their upstream Two.js types.
• Add direct declarative support for mask / clip where supported.
• Add strokeAttenuation across Path, Text, Points, Group, and derived components.
• Add Rectangle origin support across Rectangle, Image, Sprite, and ImageSequence.
• Accept Two.Texture as Sprite.src.
• Add compile-time and runtime tests for the property matrix.
• Document intentional omissions and their imperative escape hatch.
• Prefer deriving types/property lists from Two.js declarations or static property lists where this can be done safely.

[jonobr1]

Completed via PR #37 (commits ce22c1e and dd28ee3) and follow-up reconciliation in #36 (ca6c11e):

• Property Matrix: Added lib/propertyMatrix.ts and docs/property-matrix.md covering all 19 exported components against Two.js v0.8.23, documenting supported properties and intentional omissions.
• Declarative Coverage: Exposed missing properties across components:
  • mask, clip, strokeAttenuation on Path, Text, Group, SVG, and shape primitives.
  • strokeAttenuation on Points.
  • origin ergonomics (OriginProp, applyOrigin) on Rectangle, Image, Sprite, and ImageSequence supporting Two.Vector, { x, y }, tuples [x, y], and numbers.
  • Sprite.src updated to accept Two.Texture | string.
  • Exported all component prop types publicly (GroupProps, PathProps, PointsProps, TextProps, SVGProps, RectangleProps, ImageProps, SpriteProps, ImageSequenceProps).
• Reconciliation & Prop Resets: Extended prop normalization for position / translation and scale, and added missing defaults (mask, clip, strokeAttenuation, skewX, skewY, className, sizeAttenuation, spread, units) to TWO_DEFAULT_PROPS for clean reset semantics on prop removal.
• Tests: 34 unit and type tests in tests/propertyMatrix.test.tsx and 18 tests in tests/reconciliation.test.tsx passing.