Implement device-bound passkey/device auth key

[iinuwa]

⚠️ This is a draft PR for discussing a proof-of-concept. Detailed review should not be done until this work is refined.

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-27582
https://bitwarden.atlassian.net/browse/PM-26177

📔 Objective

This PR adds the ability to create and use what we're calling a "device auth key" to sign-in using the Bitwarden app. This is a draft PR for a

• Adds opt-in feature to creating device auth key.
• Use of device auth key does not require vault unlock (as opposed to [PM-26177] Implement device-bound PRF passkey without SDK #2009)

This depends on:

• Add PRF passkey authenticator support and external passkeys sdk-internal#539
• [PM-26177] Allow mobile clients to create passkeys server#6383

📸 Screenshots

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 9e3b84bc-f0f5-4728-9e1b-2d5143a2e03d

Great job! No new security vulnerabilities introduced in this pull request