fix: resolve computed GSAP timelines + drag improvements in Studio#1506
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U1: clone + shadow-aware identifier substitution over acorn ESTree, plus provenance tagging and a GsapProvenance type. Foundation for resolving helper/loop-built timelines in the read parser.
U2: expansion pre-pass that rewrites the analysis AST so a helper called N times, a literal-bounds for-loop, a for-of, or a forEach over an inline array each become concrete per-call/per-iteration tl.* statements with substituted positions and provenance tags. Transitive timeline-building detection, safe declaration dropping, depth/iteration caps; unresolvable constructs untouched.
U3: parseGsapScriptAcorn runs the inlining pre-pass before analysis, so helper-built and bounded-loop timelines resolve at true positions with motionPath arcs recognized; each tween carries provenance. Expansion order is stamped so cloned tweens (sharing source loc) sort correctly. Read path only — parseGsapScriptAcornForWrite is untouched, degrades to current behavior on failure. The add-to-basket addCycle case now yields 7 resolved animations.
Phase 2 (U4-U6): the live-runtime scanner returns tween-relative keyframes with per-tween timing and converts them to clip-relative when given clip dims, fixing the timeline-vs-clip-relative bug; it extracts motionPath into arcPath (shared buildArcPath) so the Arc Motion panel activates for data-driven arcs; the cache leaves statically-unresolvable tweens to the runtime scan. Exempts the pre-existing large useGsapTweenCache effects from fallow health (file-level, like files.ts) rather than suppression comments.
U9: editabilityForProvenance(provenance) -> direct|unroll|override (core, re-exported from the acorn subpath). A ComputedTweenNotice component shows an unroll affordance for helper/loop tweens (wired in U10) and an overrides note for dynamic ones. Extracts the shared GsapAnimationEditCallbacks interface to remove section/card prop duplication.
U7: the GSAP lint rule now loads parseGsapScriptAcorn (which inlines helpers and bounded loops) instead of the recast parser, so overlapping_gsap_tweens and related findings reflect true resolved positions for computed timelines — and keeps recast out of the lint graph entirely. Literal compositions are unchanged (parity), all 182 lint tests pass.
U8: keyframes.mdx explains that helper/loop/data-built timelines display correctly, and how each is edited — literal (direct), helper/loop (unroll to edit), dynamic (composition overrides). Nothing is permanently locked.
Adds unrollComputedTimeline (core): serializes a parsed timeline's resolved animations back to literal tl.* statements (arc/keyframe-aware) and surgically replaces the top-level helper-call/loop statements that produced them via magic-string, dropping dead helper declarations — a verified visual no-op. Wires an unroll-timeline studio-api mutation and threads onUnroll to the AnimationCard 'Unroll to edit' button. Exempts panel files whose inherited fingerprints shifted from the prop threading.
… (U11) Adds applyKeyframeOverrides: fetches a gsap-overrides.json sidecar and applies explicit per-tween value overrides to the live timeline (keyed by selector + tween ordinal), invalidating so GSAP re-reads them — the deterministic, render-safe mechanism (preview + headless) for persisting edits to dynamic tweens that can't be unrolled. Mirrors the shipped caption-overrides pattern; wired into runtime init alongside applyCaptionOverrides.
Removes the gsap-overrides.json sidecar (runtime apply + init wiring + tests): it solved a near-nonexistent case (HyperFrames is deterministic, so genuinely unresolvable dynamic tweens barely exist) and introduced a parallel persistence path outside the composition. The real cases are covered without it — const/variable values resolve statically, helper/loop tweens unroll to literals and then edit in-script (single source of truth). Renames the editability strategy 'override' -> 'source' (edit in the Code tab) and updates the notice + docs accordingly.
…rest tween Fixes the GSAP drag intercept to pick the position tween closest to the playhead (not the one with the most keyframes), and when dragging outside all tweens' ranges, creates a brand-new keyframed tween instead of destructively extending/replacing the nearest one. Reads the runtime position at the tween's start time (via iframe seek) so convert-to-keyframes produces correct 0% keyframes that preserve the interpolation from preceding tweens.
…rest tween Also reverts all fallow health.ignore additions — pre-existing complexity in touched files is accepted as inherited, not suppressed.
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Summary
addCycle(1.0, ...)) and bounded-loop timelines resolve at their true positions with MotionPath arcs recognized — the keyframe diamonds spread across the full timeline instead of collapsing to 0:00window.__timelinesfeeds the cache when the static parser can't resolve, with correct clip-relative conversion and arcPath extractionoverlapping_gsap_tweensreflects true positionsWhat changed
pickClosestToPlayhead, outside-range creates new tween viaadd-with-keyframes, runtimeresolvedFromValuesfor correct interpolationTest plan
add-to-basket-arcparses to 24 animations at correct times, 2 arcs, all helper-tagged