feat: add initial chart files

mise.toml

@@ -0,0 +1,18 @@
+[tools]
+go = "1.25.1"
+
+[tasks.devdeps]
+description = "Install dev tools"
+run = "go install github.com/cozystack/readme-generator-for-helm@latest"
+
+[tasks.readme]
+description = "Generate helm chart README"
+run = "readme-generator-for-helm --values helm/values.yaml --readme README.md"
+
+[tasks.helm-lint]
+description = "Lint helm chart"
+run = "helm lint helm/"
+
+[tasks.helm-template]
+description = "Preview helm chart output"
+run = "helm template opencloud-oidc-webfinger-proxy helm/"