chore: adopt the NAPALM driver standard

- CI moves to .gitea/workflows/ci.yml and calls the shared driver workflow
  of NAPALM/driver-standard; napalm-device-types and napalm-linux come from
  git until napalm-linux 0.15.0 is on PyPI.
- requires-python >=3.10 (napalm-device-types needs it), SPDX license
  string, setuptools>=77, LICENSE file, py.typed, links to git.netork.io.
- Dependencies: napalm-device-types>=4.22.0, napalm-linux>=0.15.0,
  napalm>=4.0 (tested at 4.0.0); dev extra with pytest, pytest-cov, mypy
  and ruff.
- mypy strict for the whole package, no exempt module: _omv_read is
  annotated as returning list[dict[str, Any]] (types only).
- Coverage floor 15 % (measured 15.89 %); the four long getters and the
  complexity of get_disks are recorded in the quality baseline.
- README (what it is, how it connects, the getters, what it does not do)
  and CHANGELOG are new.
- The committed egg-info and __pycache__ files are untracked; .gitignore
  from the template keeps them, .venv and build output out.

README.md

@@ -0,0 +1,72 @@
+# napalm-openmediavault
+
+NAPALM driver for [OpenMediaVault](https://www.openmediavault.org/) NAS systems, built on
+[napalm-device-types](https://git.netork.io/NAPALM/napalm-device-types) (`StorageDriver`) and
+[napalm-linux](https://git.netork.io/NAPALM/napalm-linux) (`LinuxDriver`).
+
+OpenMediaVault is Debian underneath, so the driver inherits everything napalm-linux does for a
+Linux host (packages, updates, services, users, processes, cron, Docker) and adds the NAS side:
+disks, md RAID arrays, filesystems, shares and the NAS services.
+
+## Tested against
+
+| Model | Firmware |
+|---|---|
+| OpenMediaVault | 6.x (Debian Bullseye), 7.x (Debian Bookworm) |
+
+## Connection
+
+SSH, port 22 by default, through napalm-linux (Netmiko). The account needs a shell; `smartctl`
+and `mdadm` run through `sudo` (passwordless, or with `sudo_password`). Every `optional_args`
+key of napalm-linux is accepted (`port`, `pkg_manager`, `sudo_password`, …).
+
+```python
+from napalm import get_network_driver
+
+driver = get_network_driver("openmediavault")
+with driver("192.0.2.10", "admin", "secret", optional_args={"sudo_password": "secret"}) as nas:
+    print(nas.get_facts())
+    print(nas.get_disks())
+    print(nas.get_shares())
+```
+
+## Supported
+
+| Getter / action | |
+|---|---|
+| `get_facts` | napalm-linux's facts, `os_version` is `OMV <version>` of the `openmediavault` package |
+| `get_disks` | `lsblk` for the disks, `smartctl -iA` for health, temperature and RPM |
+| `get_disk_pools` | md arrays from `/proc/mdstat`, size and state from `mdadm --detail` |
+| `get_volumes` | mounted block-device filesystems from `df`, read-only flag from `/proc/mounts` |
+| `get_shares` | SMB, NFS and FTP shares from OMV's configuration database (`omv-confdbadm`) |
+| `get_storage_services` | whether `smbd`, `nfs-server`, `proftpd`, `ssh` and `rsync` are enabled and running |
+| everything of napalm-linux | packages, updates, services, users, processes, cron, Docker, … |
+
+"Upgrade everything" is a full upgrade (`FULL_UPGRADE = True`): a plain `apt-get upgrade` holds
+back OpenMediaVault's own packages and the kernel.
+
+## Not supported
+
+- `get_volume_snapshots`, `get_replication_jobs`, `get_quotas` raise `NotImplementedError`.
+- `harden_ssh_server` is not offered: OpenMediaVault generates `sshd_config` from its own
+  database and would undo a drop-in on the next apply of its SSH settings.
+- Configuration changes to shares, disks or arrays.
+
+## Installation
+
+```bash
+pip install napalm-openmediavault
+```
+
+## Development
+
+The rules are in [STANDARDS.md](https://git.netork.io/NAPALM/driver-standard/src/branch/main/STANDARDS.md).
+
+```bash
+python -m venv .venv && .venv/bin/pip install -e ".[dev]"
+.venv/bin/pytest --cov
+```
+
+## License
+
+Apache-2.0