INIT(api): add FastAPI application

- Initialize FastAPI project structure
- Add basic API configuration

deploy/k8s/base/kustomization.yaml

@@ -0,0 +1,14 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - deployment.yaml
+  - service.yaml
+
+commonLabels:
+  app.kubernetes.io/name: joossam
+  app.kubernetes.io/component: api
+
+images:
+  - name: ghcr.io/mayne0213/joossam
+    newTag: latest