Add using System.Numerics to 365 more files (proactive - all files using Vector2)

Agent-Logs-Url: https://github.com/winnerspiros/osu/sessions/ad89aa15-8652-4b95-b9ea-90ecd1ef319e

Co-authored-by: winnerspiros <1675249+winnerspiros@users.noreply.github.com>

Author: Copilot

Templates/Rulesets/ruleset-example/osu.Game.Rulesets.Pippidon/Beatmaps/PippidonBeatmapConverter.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
+using System.Numerics;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Types;

Templates/Rulesets/ruleset-example/osu.Game.Rulesets.Pippidon/Objects/Drawables/DrawablePippidonHitObject.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Collections.Generic;
+using System.Numerics;
 using osu.Framework.Allocation;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;

Templates/Rulesets/ruleset-example/osu.Game.Rulesets.Pippidon/UI/PippidonCursorContainer.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Numerics;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;

Templates/Rulesets/ruleset-example/osu.Game.Rulesets.Pippidon/UI/PippidonPlayfieldAdjustmentContainer.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Numerics;
 using osu.Framework.Graphics;
 using osu.Game.Rulesets.UI;
 

osu.Android/Input/AndroidMouseHandler.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Runtime.CompilerServices;
+using System.Numerics;
 using Android.Views;
 using osu.Framework.Bindables;
 using osu.Framework.Input.Handlers;

osu.Android/Input/AndroidStylusHandler.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Runtime.CompilerServices;
+using System.Numerics;
 using Android.Views;
 using osu.Framework.Bindables;
 using osu.Framework.Input;

osu.Android/OsuGameAndroid.cs

@@ -10,6 +10,7 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Threading;
+using System.Numerics;
 using Android.App;
 using Android.Content.PM;
 using Android.OS;

osu.Game.Benchmarks/BenchmarkGeometryUtils.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Numerics;
 using BenchmarkDotNet.Attributes;
 using osu.Framework.Utils;
 using osu.Game.Utils;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneHoldNoteTailDrag.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Linq;
+using System.Numerics;
 using NUnit.Framework;
 using osu.Framework.Testing;
 using osu.Game.Rulesets.Mania.Objects;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneManiaHitObjectComposer.cs

@@ -4,6 +4,7 @@
 #nullable disable
 
 using System.Linq;
+using System.Numerics;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;