platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-gui/api/utils.py

@@ -0,0 +1,12 @@
+from __future__ import annotations
+
+import re
+
+_ANSI_RE = re.compile(r"\x1B\[[0-9;]*[A-Za-z]")
+
+
+def strip_ansi(s: str) -> str:
+    """Remove ANSI escape sequences."""
+    if not s:
+        return ""
+    return _ANSI_RE.sub("", s)