chore: adopt the NAPALM driver standard

- CI moves to .gitea/workflows/ci.yml and calls the shared driver workflow
  of NAPALM/driver-standard; .github/ is gone.
- requires-python >=3.10 (napalm-device-types needs it), napalm-device-types
  >=4.21.1, LICENSE file, py.typed, SPDX license string, a dev extra with
  floors, links to git.netork.io (README included), CHANGELOG.md.
- mypy strict for the package; exempt for now, with 130 errors between
  them: napalm_openwrt.config_mixin, .interfaces_mixin, .lldp_mixin,
  .openwrt, .packages_mixin, .routing_mixin, .system_mixin, .vlan_mixin and
  .wireless_mixin. They are recorded in the quality baseline with the long
  and complex functions and the one unannotated public method.
- Coverage floor 65 % (measured 65.03 %).

CHANGELOG.md

@@ -0,0 +1,21 @@
+# Changelog
+
+All notable changes to napalm-openwrt. The format follows
+[Keep a Changelog](https://keepachangelog.com/), versions follow
+[Semantic Versioning](https://semver.org/). Versions up to 0.6.0 were not
+recorded here; their history is the git log.
+
+## [Unreleased]
+
+### Changed
+- The driver follows the NAPALM driver standard
+  (https://git.netork.io/NAPALM/driver-standard): CI on Gitea runs ruff, mypy, the
+  tests on Python 3.10–3.13 and at the lowest declared versions, bandit, pip-audit and
+  a build check, and a release tag publishes to PyPI. The package now ships `py.typed`
+  and a LICENSE file. **Python 3.8 and 3.9 are no longer supported**;
+  napalm-device-types never ran on them.
+- napalm-device-types 4.21.1 or newer is required.
+- Exceptions the driver deliberately ignores (the snmpd community in
+  `get_snmp_config()`, the network VLANs in `get_ssids()`) are now logged at debug
+  level.
+- The project links point at git.netork.io instead of GitHub.