BONE FLOW #024 / standalone Apache WebDAV administration tools (v319)

Local development:
  powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\localhost\setup.ps1
Server preview:
  powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\server\setup.ps1 -ServerName example.com

Both are preview-only by default. To apply to an existing Apache 2.4 installation,
create an htpasswd file with Apache htpasswd.exe first; then supply -Apply.
The tools NEVER create accounts, passwords, or a DB; never modify browser data.
Configuration is stored in conf/extra and an Include is added to httpd.conf;
the original httpd.conf is backed up. On Apache syntax errors files are restored.
Use HTTPS for real servers (certificate and virtual host provisioned separately).
Basic authorization is not company/user access control. It is NOT safe to claim
companyId/userId query parameters provide authentication or per-company isolation.
A 405 response can mean a missing DAV handler; a 401 response means auth is required.
PowerShell/Windows and Apache runtime execution is NOT TESTED in this build environment.