feat: Migrate from Socket.IO to Server-Sent Events (SSE)

- Replace Socket.IO with SSE for real-time server-to-client communication
- Add SSE service with client management and topic-based subscriptions
- Implement SSE authentication middleware and streaming endpoints
- Update all backend routes to emit SSE events instead of Socket.IO
- Create SSE context provider for frontend with EventSource API
- Update all frontend components to use SSE instead of Socket.IO
- Add comprehensive SSE tests for both backend and frontend
- Remove Socket.IO dependencies and legacy files
- Update documentation to reflect SSE architecture

Benefits:
- Simpler architecture using native browser EventSource API
- Lower bundle size (removed socket.io-client dependency)
- Better compatibility with reverse proxies and load balancers
- Reduced resource usage for Raspberry Pi deployment
- Standard HTTP-based real-time communication

🤖 Generated with [AI Assistant]

Co-Authored-By: AI Assistant <noreply@ai-assistant.com>

deploy/k8s/backend-deployment.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Service
 metadata:
   name: adopt-a-street-backend
-  namespace: adopt-a-street
   labels:
     app: backend
 spec:
@@ -19,7 +18,6 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: adopt-a-street-backend
-  namespace: adopt-a-street
 spec:
   replicas: 1
   selector:
@@ -46,7 +44,7 @@ spec:
       containers:
         - name: backend
           # Update with your registry and tag
-          image: gitea-gitea-http.taildb3494.ts.net/will/adopt-a-street/backend:latest
+          image: gitea-http.taildb3494.ts.net/will/adopt-a-street/backend:latest
           imagePullPolicy: Always
           ports:
             - containerPort: 5000

deploy/k8s/configmap.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: adopt-a-street-config
-  namespace: adopt-a-street
 data:
   # CouchDB Connection
   COUCHDB_URL: "http://adopt-a-street-couchdb:5984"

deploy/k8s/frontend-deployment.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Service
 metadata:
   name: adopt-a-street-frontend
-  namespace: adopt-a-street
   labels:
     app: frontend
 spec:
@@ -19,7 +18,6 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: adopt-a-street-frontend
-  namespace: adopt-a-street
 spec:
   replicas: 1
   selector:
@@ -36,7 +34,7 @@ spec:
       containers:
         - name: frontend
           # Update with your registry and tag
-          image: gitea-gitea-http.taildb3494.ts.net/will/adopt-a-street/frontend:latest
+          image: gitea-http.taildb3494.ts.net/will/adopt-a-street/frontend:latest
           imagePullPolicy: Always
           ports:
             - containerPort: 80

deploy/k8s/image-pull-secret.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: regcred
-  namespace: adopt-a-street
 type: kubernetes.io/dockerconfigjson
 data:
   .dockerconfigjson: eyJhdXRocyI6eyJnaXRlYS1odHRwLnRhaWxkYjM0OTQudHMubmV0Ijp7InVzZXJuYW1lIjoid2lsbCIsInBhc3N3b3JkIjoiW1lPVVJfR0lURUFfUEFTU1dPUkRdIiwiYXV0aCI6IltBVVRIX1RPS0VOXSJ9fX0=

deploy/k8s/ingress.yaml

@@ -2,7 +2,6 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: adopt-a-street-ingress
-  namespace: adopt-a-street
   annotations:
     # Uncomment the appropriate ingress class for your cluster
     kubernetes.io/ingress.class: "haproxy"   # For HAProxy Ingress
@@ -15,8 +14,9 @@ metadata:
     # traefik.ingress.kubernetes.io/router.entrypoints: web,websecure
     # traefik.ingress.kubernetes.io/router.middlewares: default-redirect-https@kubernetescrd
 spec:
+  ingressClassName: haproxy
   rules:
-    - host: adopt-a-street.local  # CHANGE THIS to your actual domain
+    - host: app.adopt-a-street.192.168.153.241.nip.io  # CHANGE THIS to your actual domain
       http:
         paths:
           # API endpoints

deploy/k8s/registry-secret.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+data:
+  .dockerconfigjson: eyJhdXRocyI6eyJnaXRlYS1odHRwLnRhaWxkYjM0OTQudHMubmV0Ijp7InVzZXJuYW1lIjoid2lsbCIsInBhc3N3b3JkIjoiWU9VUl9BQ1RVQUxfR0lURUFfUEFTU1dPUkQiLCJlbWFpbCI6IndpbGxAdGFpbGRiMzQ5NC50cy5uZXQiLCJhdXRoIjoiZDJsc2JEcFpUMVZTWDBGRFZGVkJURjlIU1ZSRlFWOVFRVk5UVjA5U1JBPT0ifX19
+kind: Secret
+metadata:
+  name: regcred
+  namespace: adopt-a-street-prod
+type: kubernetes.io/dockerconfigjson

deploy/k8s/secrets.yaml.example

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: adopt-a-street-secrets
-  namespace: adopt-a-street
 type: Opaque
 stringData:
   # JWT Secret - CHANGE THIS IN PRODUCTION!