Replaces the local filesystem path (which required IIS app pool write
access to inetpub\wwwroot\DataProtection-Keys) with SQL Server storage
via IDataProtectionKeyContext. Keys now survive deploys and IIS recycles
without any server-side folder permission setup.
Production continues to use Azure Blob Storage unchanged.
- Add Microsoft.AspNetCore.DataProtection.EntityFrameworkCore 8.0.11 to
Web and Infrastructure projects
- ApplicationDbContext implements IDataProtectionKeyContext
- Migration AddDataProtectionKeys creates DataProtectionKeys table
- Program.cs: non-production path uses PersistKeysToDbContext
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Shop floor workers can log in once with a password, enroll a passkey,
and use Face ID / Windows Hello / fingerprint for all future logins.
- UserPasskey entity + AddUserPasskeys migration (Fido2 v4.0.1)
- PasskeyController: RegisterOptions, Register, LoginOptions, Login,
Manage, Remove endpoints
- Login page: platform-aware button (Face ID / Windows Hello / etc.)
hidden automatically if browser doesn't support WebAuthn
- Post-login floating prompt to enroll on first use; session-dismissed
- Passkeys & Biometrics link in user dropdown menu
- Manage page: list registered devices, add new, remove individual
- passkey.js: targeted base64url conversion (only challenge + user.id
+ credential IDs) — fixes "Required parameters missing" error caused
by blindly converting rp.id and other string fields to ArrayBuffers
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>