refactor!: rename the project from Monitor to MoShiro [CI]

Namespaces, assemblies, solution, binaries, images, systemd units, config paths, environment variables, protocol methods and the Linux user are all renamed. Breaking: existing databases, node identities and installed units must be recreated.

backend/src/MoShiro.Backend.Storage.Sqlite/Sql.cs

@@ -0,0 +1,59 @@
+using Microsoft.Data.Sqlite;
+
+namespace MoShiro.Backend.Storage.Sqlite;
+
+/// <summary>手写的参数化 SQL 的小帮手：禁止字符串拼接值，所有值都经过参数。</summary>
+internal static class Sql
+{
+    public static SqliteCommand Cmd(this SqliteConnection connection, string sql, params (string Name, object? Value)[] parameters)
+    {
+        SqliteCommand command = connection.CreateCommand();
+        command.CommandText = sql;
+        foreach ((string name, object? value) in parameters)
+        {
+            command.Parameters.AddWithValue(name, value ?? DBNull.Value);
+        }
+
+        return command;
+    }
+
+    public static int Exec(this SqliteConnection connection, string sql, params (string Name, object? Value)[] parameters)
+    {
+        using SqliteCommand command = connection.Cmd(sql, parameters);
+        return command.ExecuteNonQuery();
+    }
+
+    public static T? Scalar<T>(this SqliteConnection connection, string sql, params (string Name, object? Value)[] parameters)
+    {
+        using SqliteCommand command = connection.Cmd(sql, parameters);
+        object? value = command.ExecuteScalar();
+        return value is null or DBNull ? default : (T)Convert.ChangeType(value, Nullable.GetUnderlyingType(typeof(T)) ?? typeof(T), System.Globalization.CultureInfo.InvariantCulture);
+    }
+
+    public static List<T> Query<T>(this SqliteConnection connection, string sql, Func<SqliteDataReader, T> map, params (string Name, object? Value)[] parameters)
+    {
+        using SqliteCommand command = connection.Cmd(sql, parameters);
+        using SqliteDataReader reader = command.ExecuteReader();
+        var rows = new List<T>();
+        while (reader.Read())
+        {
+            rows.Add(map(reader));
+        }
+
+        return rows;
+    }
+
+    public static T? QueryOne<T>(this SqliteConnection connection, string sql, Func<SqliteDataReader, T> map, params (string Name, object? Value)[] parameters)
+        where T : class
+    {
+        using SqliteCommand command = connection.Cmd(sql, parameters);
+        using SqliteDataReader reader = command.ExecuteReader();
+        return reader.Read() ? map(reader) : null;
+    }
+
+    public static long? NullableLong(this SqliteDataReader reader, int ordinal) => reader.IsDBNull(ordinal) ? null : reader.GetInt64(ordinal);
+
+    public static string? NullableString(this SqliteDataReader reader, int ordinal) => reader.IsDBNull(ordinal) ? null : reader.GetString(ordinal);
+
+    public static byte[] Bytes(this SqliteDataReader reader, int ordinal) => (byte[])reader.GetValue(ordinal);
+}