feat: rules engine — priority config UI + worklist scoring

- Rules engine spec v2 (priority vs automation rules distinction)
- Priority Rules settings page with weight sliders, SLA config, campaign/source weights
- Collapsible config sections with dynamic headers
- Live worklist preview panel with client-side scoring
- AI assistant panel (collapsible) with rules-engine-specific system prompt
- Worklist panel: score display with SLA status dots, sort by score
- Scoring library (scoring.ts) for client-side preview computation
- Sidebar: Rules Engine nav item under Configuration

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

src/components/rules/campaign-weights-panel.tsx

@@ -0,0 +1,55 @@
+import { useMemo } from 'react';
+import { WeightSliderRow } from './weight-slider-row';
+import { CollapsibleSection } from './collapsible-section';
+import { useData } from '@/providers/data-provider';
+import type { PriorityConfig } from '@/lib/scoring';
+
+interface CampaignWeightsPanelProps {
+    config: PriorityConfig;
+    onChange: (config: PriorityConfig) => void;
+}
+
+export const CampaignWeightsPanel = ({ config, onChange }: CampaignWeightsPanelProps) => {
+    const { campaigns } = useData();
+
+    const updateCampaign = (campaignId: string, weight: number) => {
+        onChange({
+            ...config,
+            campaignWeights: { ...config.campaignWeights, [campaignId]: weight },
+        });
+    };
+
+    const badge = useMemo(() => {
+        if (!campaigns || campaigns.length === 0) return 'No campaigns';
+        const configured = campaigns.filter(c => config.campaignWeights[c.id] != null).length;
+        return `${campaigns.length} campaigns · ${configured} configured`;
+    }, [campaigns, config.campaignWeights]);
+
+    if (!campaigns || campaigns.length === 0) {
+        return (
+            <CollapsibleSection title="Campaign Weights" badge="No campaigns" defaultOpen={false}>
+                <p className="text-xs text-tertiary py-2">Campaign weights will apply once campaigns are created.</p>
+            </CollapsibleSection>
+        );
+    }
+
+    return (
+        <CollapsibleSection
+            title="Campaign Weights"
+            subtitle="Higher-weighted campaigns get their leads called first"
+            badge={badge}
+            defaultOpen={false}
+        >
+            <div className="divide-y divide-tertiary">
+                {campaigns.map(campaign => (
+                    <WeightSliderRow
+                        key={campaign.id}
+                        label={campaign.campaignName ?? 'Untitled Campaign'}
+                        weight={config.campaignWeights[campaign.id] ?? 5}
+                        onWeightChange={(w) => updateCampaign(campaign.id, w)}
+                    />
+                ))}
+            </div>
+        </CollapsibleSection>
+    );
+};