feat: add get_route_to() via ip route show; family-Feld für IPv4/IPv6

Initial commit mit bestehendem Code inkl. neuem get_route_to():
- Parsed ip -4 route show und ip -6 route show
- Protokoll-Map: kernel/dhcp/ra/boot→connected, static→static, ospf→ospf, bgp→bgp
- family-Feld aus Netzadresse oder Next-Hop (: = ipv6)
- default/default6 → 0.0.0.0/0 / ::/0; Host-Routen ohne Prefix bekommen /32

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,65 @@
+[build-system]
+requires = ["setuptools>=68", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "napalm-linux"
+version = "0.1.0"
+description = "NAPALM driver for generic Linux systems via SSH"
+readme = "README.md"
+requires-python = ">=3.9"
+license = { text = "Apache-2.0" }
+authors = [
+    { name = "Christian Manivong", email = "christian@manivong.de" },
+]
+keywords = [
+    "napalm",
+    "network",
+    "automation",
+    "linux",
+    "ssh",
+    "driver",
+]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: System :: Networking",
+    "Topic :: System :: Systems Administration",
+    "Typing :: Typed",
+]
+dependencies = [
+    "napalm>=4.0",
+    "napalm-device-types>=0.3.0",
+    "netmiko>=4.0.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest",
+    "pytest-cov",
+    "black",
+    "ruff",
+    "mypy",
+]
+
+[project.entry-points."napalm.drivers"]
+linux = "napalm_linux:LinuxDriver"
+
+[project.urls]
+Repository = "https://github.com/chrismanivong/napalm-linux"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["napalm_linux*"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py39"