feat: rules engine — json-rules-engine integration with worklist scoring

- Self-contained NestJS module: types, storage (Redis+JSON), fact providers, action handlers
- PriorityConfig CRUD (slider values for task weights, campaign weights, source weights)
- Score action handler with SLA multiplier + campaign multiplier formula
- Worklist consumer: scores and ranks items before returning
- Hospital starter template (7 rules)
- REST API: /api/rules/* (CRUD, priority-config, evaluate, templates)

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

src/rules-engine/consumers/worklist.consumer.ts

@@ -0,0 +1,25 @@
+// src/rules-engine/consumers/worklist.consumer.ts
+
+import { Injectable, Logger } from '@nestjs/common';
+import { RulesEngineService } from '../rules-engine.service';
+import { RulesStorageService } from '../rules-storage.service';
+
+@Injectable()
+export class WorklistConsumer {
+    private readonly logger = new Logger(WorklistConsumer.name);
+
+    constructor(
+        private readonly engine: RulesEngineService,
+        private readonly storage: RulesStorageService,
+    ) {}
+
+    async scoreAndRank(worklistItems: any[]): Promise<any[]> {
+        const rules = await this.storage.getByTrigger('on_request', 'worklist');
+        if (rules.length === 0) {
+            this.logger.debug('No scoring rules configured — returning unsorted');
+            return worklistItems;
+        }
+        this.logger.debug(`Scoring ${worklistItems.length} items with ${rules.length} rules`);
+        return this.engine.scoreWorklist(worklistItems);
+    }
+}