feat: add maui-sherpa CLI with AI-agent discoverability - #91

Argument of type 'Dictionary<string, string>' cannot be used for parameter 'dictionary' of type 'Dictionary<string, string?>' in 'string? DictionaryExtensions.GetValueOrDefault<string, string?>(Dictionary<string, string?> dictionary, string key, string? @default = null)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, string>' cannot be used for parameter 'dictionary' of type 'Dictionary<string, string?>' in 'string? DictionaryExtensions.GetValueOrDefault<string, string?>(Dictionary<string, string?> dictionary, string key, string? @default = null)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, string>' cannot be used for parameter 'dictionary' of type 'Dictionary<string, string?>' in 'string? DictionaryExtensions.GetValueOrDefault<string, string?>(Dictionary<string, string?> dictionary, string key, string? @default = null)' due to differences in the nullability of reference types.

'X509Certificate2.X509Certificate2(string)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'X509Certificate2.X509Certificate2(string)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

Dereference of a possibly null reference.

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'Rfc2898DeriveBytes.Rfc2898DeriveBytes(byte[], byte[], int, HashAlgorithmName)' is obsolete: 'The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.' (https://aka.ms/dotnet-warnings/SYSLIB0060)