Fix critical bugs and standardize service integrations

Critical Fixes:
- Orchestrator: Add missing OrchestrationStatus import (fixes HTTP 500 during demo clone)
- Procurement: Migrate from custom cache utils to shared Redis utils
- Suppliers: Use proper Settings for Redis configuration with TLS/auth
- Recipes/Suppliers clients: Fix endpoint paths (remove duplicate path segments)
- Procurement client: Use suppliers service directly for supplier details

Details:
1. services/orchestrator/app/api/internal_demo.py:
   - Added OrchestrationStatus import to fix cloning error
   - This was causing HTTP 500 errors during demo session cloning

2. services/procurement/app/api/purchase_orders.py + service:
   - Replaced app.utils.cache with shared.redis_utils
   - Standardizes caching across all services
   - Removed custom cache utilities (deleted app/utils/cache.py)

3. services/suppliers/app/consumers/alert_event_consumer.py:
   - Use Settings().REDIS_URL instead of os.getenv
   - Ensures proper Redis connection with TLS and authentication

4. shared/clients/recipes_client.py:
   - Fixed endpoint paths: recipes/recipes/{id} → recipes/{id}
   - Applied to all recipe methods (by_id, by_products, instructions, yield)

5. shared/clients/suppliers_client.py:
   - Fixed endpoint path: suppliers/suppliers/{id} → suppliers/{id}

6. shared/clients/procurement_client.py:
   - get_supplier_by_id now uses SuppliersServiceClient directly
   - Removes incorrect call to procurement service for supplier details

Impact:
- Demo session cloning now works without orchestrator errors ✅
- Consistent Redis usage across all services
- Correct service boundaries (suppliers data from suppliers service)
- Clean client endpoint paths

🤖 Generated with Claude Code (https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

services/procurement/app/services/purchase_order_service.py

@@ -33,7 +33,7 @@ from shared.clients.suppliers_client import SuppliersServiceClient
 from shared.clients.inventory_client import InventoryServiceClient
 from shared.config.base import BaseServiceSettings
 from shared.messaging import RabbitMQClient, UnifiedEventPublisher, EVENT_TYPES
-from app.utils.cache import delete_cached, make_cache_key
+from shared.redis_utils import get_keys_pattern, get_redis_client
 
 logger = structlog.get_logger()
 
@@ -396,9 +396,18 @@ class PurchaseOrderService:
             await self.db.commit()
 
             # PHASE 2: Invalidate purchase orders cache
-            cache_key = make_cache_key("purchase_orders", str(tenant_id))
-            await delete_cached(cache_key)
-            logger.debug("Invalidated purchase orders cache", cache_key=cache_key, tenant_id=str(tenant_id))
+            # Get all purchase order cache keys for this tenant and delete them
+            try:
+                cache_pattern = f"purchase_orders:{tenant_id}:*"
+                client = await get_redis_client()
+                if client:
+                    keys = await client.keys(cache_pattern)
+                    if keys:
+                        await client.delete(*keys)
+                        logger.debug("Invalidated purchase orders cache", pattern=cache_pattern, keys_deleted=len(keys), tenant_id=str(tenant_id))
+            except Exception as e:
+                logger.warning("Cache invalidation failed, continuing without cache invalidation", 
+                              pattern=f"purchase_orders:{tenant_id}:*", error=str(e))
 
             # Acknowledge PO approval alerts (non-blocking)
             try: