Port chart-releaser release pipeline and add root README

README.md

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+# taskmedia/helm
+
+[![Release Charts](https://github.com/taskmedia/helm/actions/workflows/release.yaml/badge.svg)](https://github.com/taskmedia/helm/actions/workflows/release.yaml)
+[![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/taskmedia)](https://artifacthub.io/packages/search?repo=taskmedia)
+
+Source repository for [task.media](https://task.media)'s Helm charts. Charts here are packaged
+and published by [chart-releaser](https://github.com/helm/chart-releaser) to the Helm repository
+hosted at **[helm.task.media](https://helm.task.media)**, and mirrored as OCI artifacts to
+[ghcr.io/taskmedia](https://github.com/orgs/taskmedia/packages?tab=packages&q=helm).
+
+## Usage
+
+Add the repository and install a chart:
+
+```bash
+helm repo add taskmedia https://helm.task.media
+helm repo update
+helm install my-release taskmedia/<chart>
+```
+
+Or install directly via OCI:
+
+```bash
+helm upgrade --install my-release oci://ghcr.io/taskmedia/<chart>
+```
+
+## Charts
+
+For published versions and release dates, see [helm.task.media](https://helm.task.media)
+or [Artifact Hub](https://artifacthub.io/packages/search?repo=taskmedia) — the table below is
+maintained by hand and tracks chart sources, not versions.
+
+<!-- start charts -->
+
+| Chart | Description | Source |
+|-------|-------------|--------|
+| [ipsec-vpn-server](charts/ipsec-vpn-server) | Deploy IPsec VPN server inside K8s with optional sealed-secrets | [helm_ipsec-vpn-server](https://github.com/taskmedia/helm_ipsec-vpn-server) |
+| [paperlessngx-backup](charts/paperlessngx-backup) | Backup paperless-ngx via K8s cronjob to FTP | [helm_paperlessngx-backup](https://github.com/taskmedia/helm_paperlessngx-backup) |
+| [paperlessngx-ftp-bridge](charts/paperlessngx-ftp-bridge) | Upload files from a FTP (TLS) server to paperless-ngx | [paperlessngx-ftp-bridge](https://github.com/taskmedia/paperlessngx-ftp-bridge) |
+| [vpn-ios-profile](charts/vpn-ios-profile) | Deploy a VPN server in K8s with a provided iOS profile | [helm_vpn-ios-profile](https://github.com/taskmedia/helm_vpn-ios-profile) |
+
+<!-- end charts -->
+
+## Repository layout
+
+```
+charts/      Helm chart sources, one directory per chart
+scripts/     Local helper scripts (sealed-secrets, public key fetch)
+```
+
+Each chart's source code typically lives in its own `taskmedia/helm_<chart>` repository; this
+repository packages and releases the Helm chart itself.
+
+## Releasing
+
+Pushing a change under `charts/**` to `main` triggers `.github/workflows/release.yaml`, which runs
+chart-releaser to cut a GitHub release per changed chart and update the chart table on `gh-pages`
+(the branch served at helm.task.media).