docs: update documentation and project structure

- Update AGENTS.md, README.md, and docs/* with revisions
- Refactor lib/acme.py and lib/state.py
- Add tests for acme module
- Remove install.sh and restart-services.sh (moved to scripts/)
- Normalize vendor files (acme.sh, htm.js)

tests/test_acme.py

@@ -117,6 +117,20 @@ class TestParseListOutput:
         result = acme._parse_list_output(raw)
         assert result == []
 
+    def test_pipe_separated_raw_format(self):
+        """Pipe-separated output with empty fields (what --listraw produces)."""
+        raw = (
+            "Main_Domain|KeyLength|SAN_Domains|Profile|CA|Created|Renew\n"
+            'example.com|"ec-256"|no||ZeroSSL.com|2026-01-01|2026-07-01\n'
+        )
+        result = acme._parse_list_output(raw)
+        assert len(result) == 1
+        assert result[0]["main_domain"] == "example.com"
+        assert result[0]["profile"] == ""
+        assert result[0]["ca"] == "ZeroSSL.com"
+        assert result[0]["created"] == "2026-01-01"
+        assert result[0]["renew"] == "2026-07-01"
+
 
 class TestDaysUntil:
     def test_future_date(self):