CHORE(app): reduce resource limits

- CPU limit: 300m → 50m (prod), 210m → 30m (dev)
- Memory limit: 230Mi → 120Mi (prod), 161Mi → 100Mi (dev)
- ResourceQuota adjusted accordingly

Actual usage: ~3m CPU, ~71Mi memory

deploy/k8s/overlays/dev/deployment-patch.yaml

@@ -12,8 +12,8 @@ spec:
         - name: todo-app
           resources:
             requests:
-              memory: "84Mi"
+              memory: "40Mi"
-              cpu: "35m"
+              cpu: "15m"
             limits:
-              memory: "161Mi"
+              memory: "100Mi"
-              cpu: "210m"
+              cpu: "30m"

deploy/k8s/overlays/dev/kustomization.yaml

@@ -14,7 +14,7 @@ commonLabels:
 # 이미지 태그 설정
 images:
   - name: ghcr.io/mayne0213/todo
-    newTag: develop-sha-5933c29ebf593bd3a23d8ed6cda365ebde05ec14
+    newTag: develop-sha-27e45f8d1f42ec831ad9160101572af7d8b9218b
 
 patchesStrategicMerge:
   - deployment-patch.yaml

deploy/k8s/overlays/dev/resourcequota.yaml

@@ -5,8 +5,8 @@ metadata:
   namespace: todo-dev
 spec:
   hard:
-    requests.memory: "525Mi"
+    requests.memory: "150Mi"
-    requests.cpu: "420m"
+    requests.cpu: "60m"
-    limits.memory: "840Mi"
+    limits.memory: "300Mi"
-    limits.cpu: "840m"
+    limits.cpu: "100m"
     pods: "6"

deploy/k8s/overlays/prod/deployment-patch.yaml

@@ -12,9 +12,9 @@ spec:
         - name: todo-app
           resources:
             requests:
+              memory: "50Mi"
+              cpu: "20m"
+            limits:
               memory: "120Mi"
               cpu: "50m"
-            limits:
-              memory: "230Mi"
-              cpu: "300m"
 

deploy/k8s/overlays/prod/resourcequota.yaml

@@ -5,9 +5,9 @@ metadata:
   namespace: todo
 spec:
   hard:
-    requests.memory: "750Mi"
+    requests.memory: "250Mi"
-    requests.cpu: "600m"
+    requests.cpu: "100m"
-    limits.memory: "1200Mi"
+    limits.memory: "500Mi"
-    limits.cpu: "1200m"
+    limits.cpu: "200m"
     pods: "9"