feat: metadata store (CN→email) and .ovpn config builder

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

tests/test_config_builder.py

@@ -0,0 +1,28 @@
+import os
+from pathlib import Path
+from datetime import date
+from openvpncertupdate import build_ovpn
+
+def setup_pki(tmp_path, cn, inline_content="<ca>X</ca>"):
+    pki = tmp_path / "pki"
+    private_dir = pki / "inline" / "private"
+    private_dir.mkdir(parents=True)
+    (private_dir / f"{cn}.inline").write_text(inline_content)
+    return str(pki)
+
+def test_creates_file_with_combined_content(tmp_path):
+    pki = setup_pki(tmp_path, "alice", "<ca>CERT</ca>")
+    tmpl = tmp_path / "t.ovpn"
+    tmpl.write_text("client\ndev tun\n")
+    result = build_ovpn("alice", pki, str(tmpl), str(tmp_path / "out"), "vpn.ovpn")
+    content = Path(result).read_text()
+    assert "client" in content
+    assert "CERT" in content
+
+def test_output_path_has_cn_and_date(tmp_path):
+    pki = setup_pki(tmp_path, "bob")
+    tmpl = tmp_path / "t.ovpn"; tmpl.write_text("")
+    today = date.today().strftime("%Y-%m-%d")
+    result = build_ovpn("bob", pki, str(tmpl), str(tmp_path / "out"), "vpn.ovpn")
+    assert f"bob_{today}" in result
+    assert result.endswith("vpn.ovpn")