fix(studio): per-property-group intercept routing + drag/resize fixes (#1356)

* fix(core): per-property-group keyframe foundations

Add PropertyGroupName type system (position/scale/size/rotation/visual/other),
PROPERTY_GROUPS constant, classifyPropertyGroup/classifyTweenPropertyGroup
functions. Parser generates group-aware animation IDs, resolves position strings
(+=, -=, <, >), uses numeric matching with 2% tolerance, and preserves IDs
across all mutations.

* fix(core): add split-into-property-groups and replace-with-keyframes mutations

Server-side mutations for atomic property-group splitting and keyframe
replacement. Client commitMutation returns early on changed:false instead
of throwing.

* fix(studio): per-property-group intercept routing + drag/resize fixes

Rewire GSAP runtime bridge for property-group routing: drag sends only {x,y}
to position group, resize routes to scale group via data-hf-studio-original-width,
rotation routes to rotation group. Add resolveGroupTween helper, from-extend
with split-first-then-position-only pattern, autoKeyframeEnabled guards,
GSAP base + delta fix in drag draft, cancel-restores-GSAP-x/y from data attrs.

packages/studio/src/utils/globalTimeCompiler.ts

@@ -27,6 +27,7 @@ export function isTimeWithinTween(
 }
 
 export function resolveTweenStart(animation: GsapAnimation): number | null {
+  if (animation.resolvedStart != null) return animation.resolvedStart;
   if (typeof animation.position === "number") return animation.position;
   const parsed = Number.parseFloat(animation.position as string);
   if (!Number.isNaN(parsed)) return parsed;
@@ -34,7 +35,7 @@ export function resolveTweenStart(animation: GsapAnimation): number | null {
 }
 
 export function resolveTweenDuration(animation: GsapAnimation): number {
-  return animation.duration ?? 1;
+  return animation.duration ?? 0.5;
 }
 
 export function findTweenAtTime(