fix: debuff corruption bug in game.js — codeBoost -> codeRate

Community Drama debuff applyFn was mutating G.codeBoost *= 0.7 on every
updateRates() call, permanently degrading the boost. Now correctly
applies G.codeRate *= 0.7 to the rate output, not the persistent boost.
Fixes #64

game.js

@@ -1606,7 +1606,7 @@ const EVENTS = [
             G.activeDebuffs.push({
                 id: 'community_drama', title: 'Community Drama',
                 desc: 'Harmony -0.5/s, code boost -30%',
-                applyFn: () => { G.harmonyRate -= 0.5; G.codeBoost *= 0.7; },
+                applyFn: () => { G.harmonyRate -= 0.5; G.codeRate *= 0.7; },
                 resolveCost: { resource: 'trust', amount: 15 }
             });
             log('EVENT: Community drama. Spend 15 trust to mediate.', true);