Fap Hero JOURNEY v0.7.6

A hotfix that smooths the round → shop → round flow and clears up a handful of visual bugs.

🎬 Cleaner round transitions

• Boss, effect, and mystery-encounter intro cards now fade away to reveal the round instead of
  hard-cutting, and they no longer show the previous round's frozen last frame behind them.
• Shops, checkpoints, and forks now open on a clean black background — the last frame of the round you
  just finished no longer bleeds through behind them.

✨ Rewards you can actually see

• Item / coin / counter pop-ups now sit above the shop and other full-screen screens, so a reward
  handed to you right before a shop (or storyboard) isn't buried behind it.
• Buying an item in a shop now shows a clear "✓ added to inventory" confirmation — the old feedback was
  a quick flash that was easy to miss.

🧰 For creators (builder & QC)

• Test From Here can now pre-grant items and pre-set counters for the run (alongside the existing
  score / coins / flags seeds), so a mid-journey node can be tested with the state it expects — item- and
  counter-gated forks and shops finally exercise from any starting point.
• In test mode, press → to complete the current round instantly and still collect its rewards
  (coins, items, counters) — QCing a long journey no longer means watching every video end to end.
• The shop's item pickers in the builder are now compact multi-select dropdowns — with each item's
  description on hover — instead of long checkbox columns.

🩹 Fixes

• Tunnel sensory effect: its intensity now visibly changes the strength — low is a faint vignette, high
  closes to near-black. (Before, 1% and 100% looked the same.)
• Shop: the rightmost item card's border is no longer clipped when a row is full.
• Builder: ⊞ ARRANGE now moves pinned notes along with their nodes.
• The warmup-round SKIP button now fades in with the HUD at round start instead of popping in solid.