chore(studio): remove all console.* calls from studio package (#1691)

* chore(studio): remove all console.* calls from studio package

* chore(studio): address review — remove dead stubs, restore consent notice

- Delete empty if-blocks left after console removal (snapTargetCollection,
  Player asset-poll, useTimelineSyncCallbacks 5s probe, useGestureRecording
  dev guard + now-unused isDevBuild) and the stale "surface in dev" comment.
- Drop the dangling no-console pragma + dead duplicate-id branch in sourcePatcher.
- Restore the one-time telemetry consent disclosure in showNoticeOnce (kept
  behind a pragma — it is a user-facing notice, not debug noise).
- Remove the missed timelineIcons console.warn while preserving the
  `tag || "div"` null-safety fallback.
- Route caption auto-save failures (a data-loss path) through telemetry
  instead of swallowing silently.
- Restore the accidentally-clobbered css-var-fonts output.mp4 fixture.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/studio/src/components/editor/snapTargetCollection.ts

@@ -100,11 +100,6 @@ export function collectSnapContext(input: {
 
   const MAX_SNAP_TARGETS = 80;
   const elements = collectVisibleElements(root, input.excludeElements, MAX_SNAP_TARGETS);
-  if (elements.length >= MAX_SNAP_TARGETS) {
-    console.warn(
-      `[snap] Target cap reached (${MAX_SNAP_TARGETS}). Elements beyond this limit are excluded from snap alignment.`,
-    );
-  }
 
   const entries: Array<{
     rect: { left: number; top: number; width: number; height: number };