docs: add documentation versioning

scripts/mkdocs

@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+"""mkdocs shim for mike compatibility.
+
+mike parses mkdocs.yml (valid YAML stub) for its Python internals, then calls
+`mkdocs build --config-file <mike-injected-temp.yml>` as a subprocess.
+
+This shim intercepts that subprocess call, ignores the temp config, and
+delegates the actual build to `zensical build -f zensical.toml` instead.
+"""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+
+
+def main() -> None:
+    args = sys.argv[1:]
+
+    # mike calls `mkdocs --version` to embed in the commit message
+    if args and args[0] == "--version":
+        print("mkdocs, version 1.0.0 (zensical shim)")
+        return
+
+    if not args or args[0] != "build":
+        result = subprocess.run(["python3", "-m", "mkdocs"] + args)
+        sys.exit(result.returncode)
+
+    config_file = "mkdocs.yml"
+    clean = False
+
+    i = 1
+    while i < len(args):
+        if args[i] in ("-f", "--config-file") and i + 1 < len(args):
+            config_file = args[i + 1]
+            i += 2
+        elif args[i] in ("-c", "--clean"):
+            clean = True
+            i += 1
+        elif args[i] == "--dirty":
+            i += 1
+        else:
+            i += 1
+
+    # mike creates a temp file prefixed with "mike-mkdocs"; always delegate
+    # the actual build to zensical regardless of which config was passed.
+    del config_file  # unused — zensical auto-discovers zensical.toml
+
+    cmd = ["zensical", "build"]
+    if clean:
+        cmd.append("--clean")
+
+    env = os.environ.copy()
+    result = subprocess.run(cmd, env=env)
+    sys.exit(result.returncode)
+
+
+if __name__ == "__main__":
+    main()