Replace stored-procedure repositories with Dapper-based repositories

Removes the USP_* stored procedures for Auth, Location, and Brewery
data access in favour of services built with Dapper.

Adds a new Features.Locations slice and optimistic concurrency support
for the Brewery slice.

web/backend/Features/Features.Auth/Services/TokenService.cs

@@ -85,12 +85,7 @@ public class TokenService : ITokenService
         );
     }
 
-    /// <summary>
-    ///     Generates a token of the kind specified by <typeparamref name="T" />, dispatching to
-    ///     <see cref="GenerateAccessToken" />, <see cref="GenerateRefreshToken" />, or
-    ///     <see cref="GenerateConfirmationToken" />.
-    /// </summary>
-    /// <typeparam name="T">Must be <see cref="TokenType" />.</typeparam>
+    /// <inheritdoc />
     /// <exception cref="InvalidOperationException">
     ///     Thrown when <typeparamref name="T" /> is not <see cref="TokenType" /> or does not resolve to a known token type.
     /// </exception>