fix(studio): keyframe bug fixes — gate delete hooks, fix value corruption, gesture recording (#1314)

- Gate stripStudioEditsFromTarget/bakeVisibilityOnDelete behind a
  stripStudioEdits flag on the delete mutation type so they only fire on
  user-initiated deletes, not on internal delete-then-recreate drags.

- Add bakeVisibilityOnDelete to the remove-all-keyframes handler so
  elements with CSS opacity:0 stay visible after collapsing keyframes.

- Fix integer rounding in readAllAnimatedProperties: use 3-decimal
  precision for visual properties (opacity, scale, rotation) instead of
  Math.round which corrupted mid-fade values to 0.

- Guard VISUAL_BASELINE against cross-tween contamination by querying
  __timelines for properties animated by other tweens on the same element.

- Harden bakeVisibilityOnDelete: reverse-scan keyframes for the last one
  containing opacity, guard against relative values (+=/-=/*=), and add
  Number.isFinite check.

- Fix falsy-zero doubling in drag commit: replace || fallback with
  Number.isFinite so a base GSAP position of 0 is correctly preserved.

- Fix gesture recording sign inversion: remove pointerElementOffset
  subtraction from dx/dy formula and instead apply it once to basePosition
  so the element center tracks the pointer.

- Fix TypeScript build errors in gsapSoftReload.ts (6 double-casts).

- Strip all diagnostic logs from production code.

packages/studio/src/components/renders/RenderQueueItem.tsx

@@ -142,53 +142,54 @@ export const RenderQueueItem = memo(function RenderQueueItem({
           )}
         </div>
 
-        {/* Actions */}
-        {hovered && (
-          <div className="flex items-center gap-1 flex-shrink-0">
-            {isComplete && (
-              <button
-                onClick={handleDownload}
-                className="p-1 rounded text-panel-text-4 hover:text-panel-accent transition-colors"
-                title="Download"
-              >
-                <svg
-                  width="12"
-                  height="12"
-                  viewBox="0 0 24 24"
-                  fill="none"
-                  stroke="currentColor"
-                  strokeWidth="2"
-                  strokeLinecap="round"
-                  strokeLinejoin="round"
-                >
-                  <path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4" />
-                  <polyline points="7 10 12 15 17 10" />
-                  <line x1="12" y1="15" x2="12" y2="3" />
-                </svg>
-              </button>
-            )}
-            <button
-              onClick={(e) => {
-                e.stopPropagation();
-                onDelete();
-              }}
-              className="p-1 rounded text-panel-text-4 hover:text-red-400 transition-colors"
-              title="Remove"
+        {/* Actions — always visible to prevent layout shifts */}
+        <div className="flex items-center gap-1 flex-shrink-0">
+          <button
+            onClick={isComplete ? handleDownload : undefined}
+            className={`p-1 rounded transition-colors ${
+              isComplete
+                ? "text-panel-text-5 hover:text-panel-accent"
+                : "text-panel-text-5/30 pointer-events-none"
+            }`}
+            title={isComplete ? "Download" : "Rendering..."}
+            disabled={!isComplete}
+          >
+            <svg
+              width="12"
+              height="12"
+              viewBox="0 0 24 24"
+              fill="none"
+              stroke="currentColor"
+              strokeWidth="2"
+              strokeLinecap="round"
+              strokeLinejoin="round"
             >
-              <svg
-                width="12"
-                height="12"
-                viewBox="0 0 24 24"
-                fill="none"
-                stroke="currentColor"
-                strokeWidth="2"
-                strokeLinecap="round"
-              >
-                <path d="M18 6L6 18M6 6l12 12" />
-              </svg>
-            </button>
-          </div>
-        )}
+              <path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4" />
+              <polyline points="7 10 12 15 17 10" />
+              <line x1="12" y1="15" x2="12" y2="3" />
+            </svg>
+          </button>
+          <button
+            onClick={(e) => {
+              e.stopPropagation();
+              onDelete();
+            }}
+            className="p-1 rounded text-panel-text-5 hover:text-red-400 transition-colors"
+            title="Remove"
+          >
+            <svg
+              width="12"
+              height="12"
+              viewBox="0 0 24 24"
+              fill="none"
+              stroke="currentColor"
+              strokeWidth="2"
+              strokeLinecap="round"
+            >
+              <path d="M18 6L6 18M6 6l12 12" />
+            </svg>
+          </button>
+        </div>
       </div>
     </div>
   );