feat: standards, shared CI and release tooling for NAPALM drivers

STANDARDS.md binds every repository in the NAPALM org: one default branch,
Conventional Commits, the device-types contract, test-driven development,
clean-code limits, a quality ratchet for existing code, packaging rules and
releases by tag to PyPI.

napalm-standard holds what a tool can check: the conformance check (with
release rules on a tag), the quality ratchet (ported from netOrk's
quality_ratchet.py), and the Gitea release from the CHANGELOG section.
.gitea/workflows/driver.yml is the CI every driver calls; template/ is a new
driver's starting point and passes the check as it is.

CHANGELOG.md

@@ -0,0 +1,19 @@
+# Changelog
+
+The format follows [Keep a Changelog](https://keepachangelog.com/), versions follow
+[Semantic Versioning](https://semver.org/).
+
+## [Unreleased]
+
+## [0.1.0] - 2026-10-22
+
+### Added
+- STANDARDS.md: repository usage, the device-types contract, TDD, clean code, the
+  quality ratchet, packaging, versions and releases.
+- `napalm-standard check`: the conformance check, with release rules on a tag.
+- `napalm-standard ratchet`: function length, complexity, file size, annotations,
+  strict-mypy exemptions and the coverage floor against `tests/quality_baseline.json`.
+- `napalm-standard notes` and `release`: the CHANGELOG section of a version, and the
+  Gitea release made from it.
+- The shared driver workflow `.gitea/workflows/driver.yml`, publishing to PyPI on a tag.
+- A template for new drivers.