feat: Add deployment infrastructure and documentation

Docker:
- Add production-ready Dockerfiles for all microservices
- Optimize for multi-stage builds and minimal image sizes

Kubernetes:
- Add namespace and service manifests
- Include MongoDB and Redis deployment configurations
- Configure API server and charging engine deployments

Documentation:
- Add comprehensive README with platform overview
- Include technology stack and quick start instructions
- Provide prerequisites and setup guidance

deployments/kubernetes/02-redis.yaml

@@ -0,0 +1,46 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis
+  namespace: taas-platform
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - name: redis
+        image: redis:7-alpine
+        ports:
+        - containerPort: 6379
+        command:
+        - redis-server
+        - --maxmemory
+        - "2gb"
+        - --maxmemory-policy
+        - allkeys-lru
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "100m"
+          limits:
+            memory: "2Gi"
+            cpu: "500m"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: taas-platform
+spec:
+  selector:
+    app: redis
+  ports:
+  - port: 6379
+    targetPort: 6379
+  type: ClusterIP