Fix: Normalize console generator paths across cross platform

[techmahedy]

This PR makes Doppar console generator commands handle both / and \ path input consistently across Windows, macOS, and Linux.

Changes

1. Added shared command helpers to normalize generated names and file paths
2. Ensured generated file output paths are always shown as relative paths without a leading /
3. Updated generator commands to use the shared normalization flow
4. Updated related command path handling in auth file listing and view cache compilation
5. Added regression coverage for backslash input and normalized output paths