fix(themess): rewrite script for batch correctness and burn recovery

[runsonmypc]

Summary

Rewrite of The Mess plugin (Hosidius Servery cooking minigame) for batch-atomic execution and graceful recovery from burns.

• Make-All semantics: every cook/combine chain blocks until the consumed ingredient hits 0 — dispatcher cannot pick a competing guard mid-chain.
• Strict batch sizing with hard-fail invariant: if any chain item exceeds BATCH_SIZE (14, or 13 for pizza accounting for 2 knife slots) the script shuts down loudly rather than overshoot.
• Burn-leftover reuse: leftover bowls/shells from prior burns top up the next batch via predecessor-count sizing instead of triggering a small-batch loop.
• Burnt food only dropped between phases (gated on `!isAnimating && !isProductionWidgetOpen`) so a stray drop can't break a Cook-All chain.
• Cupboard chatbox input matches Rs2GrandExchange timing — small-qty values now register reliably (was silently dropping qty=2 and hanging the withdraw retry loop).
• Pizza combine stall fix: `waitForCombineChain` tracks sum-of-counts instead of min, so knife+pineapple cutting (knife persists at 2) doesn't trip the stall guard prematurely.

Test plan

• Meat pie: full 14-batch loop, leftover-shell start scenario, burn recovery across multiple rounds.
• Stew: full 14-batch loop, 2-bowl leftover from burns folds into next round, small-qty potato withdraws no longer hang.
• Pizza: not testable by author (no access). Reviewed against the same patterns as meat pie / stew; combine stall guard fixed for the knife-cutting case.