Replace stub templates with real stegasoo UI for generate, tools, admin
Generate page:
- Full form with passphrase word count slider, PIN/RSA toggles
- Credential display with copy buttons, QR code, entropy breakdown
- Channel key generation accordion
- Added QR code routes (generate_qr, generate_qr_download)
- Added RSA key download route (download_key)
- Fixed route name: encode_page → encode
Tools page:
- Image capacity checker, EXIF viewer/editor, rotation, compression
- Format conversion, image comparison
- (API routes for tools pending — UI renders but actions need backend)
Admin users page:
- User table with role badges, creation dates
- Add/delete/reset password actions
- Fixed route names to match soosef conventions
- Added user_count and current_user to template context
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
10838ce828