refactor: simplify k8s deployment to pure kubectl

- Remove kustomization.yaml and all kustomize references
- Remove deploy-pi.sh and vpa-pi-helper.sh helper scripts
- Remove redundant ConfigMap from vpa.yaml
- Update README.md to focus on standard kubectl commands
- Keep deployment simple with just YAML files and kubectl
- Maintain Pi 5 optimizations and VPA functionality
- No complex tooling required for deployment

k8s/deployment.yaml

@@ -0,0 +1,74 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: unitforge
+  labels:
+    app: unitforge
+    component: webapp
+spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  selector:
+    matchLabels:
+      app: unitforge
+  template:
+    metadata:
+      labels:
+        app: unitforge
+        component: webapp
+    spec:
+      containers:
+        - name: unitforge
+          image: gitea-http.taildb3494.ts.net/will/unitforge:latest
+          imagePullPolicy: Always
+          ports:
+            - name: http
+              containerPort: 8000
+              protocol: TCP
+          env:
+            - name: HOST
+              value: "0.0.0.0"
+            - name: PORT
+              value: "8000"
+            - name: DEBUG
+              value: "false"
+            - name: ENVIRONMENT
+              value: "production"
+            - name: LOG_LEVEL
+              value: "info"
+            - name: RELOAD
+              value: "false"
+            - name: WORKERS
+              value: "2"
+          envFrom:
+            - configMapRef:
+                name: unitforge-config
+          resources:
+            requests:
+              memory: "128Mi"
+              cpu: "100m"
+            limits:
+              memory: "256Mi"
+              cpu: "300m"
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: 60
+            periodSeconds: 30
+            timeoutSeconds: 10
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 3
+      restartPolicy: Always
+      terminationGracePeriodSeconds: 30