Create Digital Logo Assets

**Title:** Create digital assets for Knetz logo

**Description:**
Convert the approved logo concept into digital formats. Ensure assets are suitable for GitHub repo, documentation, CLI, and marketing use.

**Requirements / Notes:**
- Formats: SVG (primary), PNG (light/dark variants), and favicon size
- Ensure scalability for small CLI icon usage
- Include a version with transparent background

**Tasks:**
- [ ] Create SVG version of logo
- [ ] Generate PNG versions (light and dark backgrounds)
- [ ] Generate 32x32 and 64x64 favicon versions
- [ ] Upload all assets to `/assets/logo` folder

Start with the approved logo concept referenced in the issue and use `/assets/logo` as the destination. Create the SVG, light and dark PNG variants, transparent-background asset, and 32x32 and 64x64 favicon versions; the work is done when all required formats are uploaded and remain suitable at small CLI-icon sizes.

Written by the indexing model from the issue text.