Move Windows install location from ~\.hermes (user profile root) to
%LOCALAPPDATA%\hermes (C:\Users\<user>\AppData\Local\hermes).
The user profile directory is prone to issues from OneDrive sync,
Windows Defender Controlled Folder Access, and NTFS filter drivers
that break git's atomic file operations. %LOCALAPPDATA% is the
standard Windows location for per-user app data (used by VS Code,
Discord, etc.) and avoids these issues.
Changes:
- Default HermesHome to $env:LOCALAPPDATA\hermes
- Set HERMES_HOME user env var so Python code finds the new location
- Auto-migrate existing ~\.hermes installations on first run
- Update completion message to show actual paths