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/utils/__init__.py

@@ -1,26 +1,9 @@
-# services/alert_processor/app/utils/__init__.py
+# services/procurement/app/utils/__init__.py
 """
-Utility modules for alert processor service
+Utility modules for procurement service
 """
 
-from .cache import (
-    get_redis_client,
-    close_redis,
-    get_cached,
-    set_cached,
-    delete_cached,
-    delete_pattern,
-    cache_response,
-    make_cache_key,
-)
+# Note: Redis utilities are now provided by shared.redis_utils
+# Import from shared.redis_utils instead of local cache module
 
-__all__ = [
-    'get_redis_client',
-    'close_redis',
-    'get_cached',
-    'set_cached',
-    'delete_cached',
-    'delete_pattern',
-    'cache_response',
-    'make_cache_key',
-]
+__all__ = []