Add jsinspect-plus structural duplication gate, extract shared helpers

Add jsinspect-plus (AST-based structural duplication detector) to pnpm
check with threshold 50 / min 3 instances. Fix all findings:

- Extract condition icon/color maps to shared condition-styles.ts
- Extract useClickOutside hook (5 components)
- Extract dispatchAction + resolveAndRename in use-encounter
- Extract runEncounterAction in application layer (13 use cases)
- Extract findCombatant helper in domain (9 functions)
- Extract TraitSection in stat-block (4 trait rendering blocks)
- Extract DialogHeader in dialog.tsx (4 dialogs)

Net result: -263 lines across 40 files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/components/condition-styles.ts

@@ -0,0 +1,54 @@
+import type { LucideIcon } from "lucide-react";
+import {
+	ArrowDown,
+	Ban,
+	BatteryLow,
+	Droplet,
+	EarOff,
+	EyeOff,
+	Gem,
+	Ghost,
+	Hand,
+	Heart,
+	Link,
+	Moon,
+	ShieldMinus,
+	Siren,
+	Snail,
+	Sparkles,
+	ZapOff,
+} from "lucide-react";
+
+export const CONDITION_ICON_MAP: Record<string, LucideIcon> = {
+	EyeOff,
+	Heart,
+	EarOff,
+	BatteryLow,
+	Siren,
+	Hand,
+	Ban,
+	Ghost,
+	ZapOff,
+	Gem,
+	Droplet,
+	ArrowDown,
+	Link,
+	ShieldMinus,
+	Snail,
+	Sparkles,
+	Moon,
+};
+
+export const CONDITION_COLOR_CLASSES: Record<string, string> = {
+	neutral: "text-muted-foreground",
+	pink: "text-pink-400",
+	amber: "text-amber-400",
+	orange: "text-orange-400",
+	gray: "text-gray-400",
+	violet: "text-violet-400",
+	yellow: "text-yellow-400",
+	slate: "text-slate-400",
+	green: "text-green-400",
+	indigo: "text-indigo-400",
+	sky: "text-sky-400",
+};