[R0101] Restliche Wartungsvorschlaege abschliessen

- GetParticipants-Bug behoben (participant2 vor participant1) und repetitiven Teilnehmer-Code durch Schleifen ersetzt
- .editorconfig fuer einheitlichen Code-Stil eingefuehrt
- CHANGELOG.md aus Git-History erstellt
- R0101 Wartung auf Erledigt gesetzt — alle 9 Vorschlaege umgesetzt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: stho32

CHANGELOG.md

@@ -0,0 +1,75 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/).
+
+## [Unreleased]
+
+### Added
+- Unit-Test-Projekte fuer BL und Infrastructure (40 Tests)
+- 8 Kern-Feature-Anforderungen dokumentiert (R0001-R0008)
+- Wartungsbericht R0101 mit Verbesserungsvorschlaegen
+- `.editorconfig` fuer einheitlichen Code-Stil
+
+### Changed
+- SessionConfigurationFileHandler und SessionConfigurationFolderHandler von static auf Instanz-Klassen refactored (Testbarkeit)
+- Teilnehmer-Code in EnterNamesWindow durch Schleifen ersetzt (war 10x Copy-Paste)
+- GitHub Actions auf aktuelle Versionen aktualisiert (checkout@v4, setup-dotnet@v4, action-gh-release@v2)
+- Avalonia UI auf 11.3.13 aktualisiert (via NuGet-Update PR #27)
+
+### Fixed
+- GetParticipants() Bug: participant2 wurde vor participant1 hinzugefuegt
+- Leerer catch-Block in StartForm durch Fehleranzeige ersetzt
+- Typo `activeParticipnat` -> `activeParticipant` korrigiert
+
+### Removed
+- Ungenutztes VisualPairCoding.Interfaces-Projekt (IGithubAPIResponse — Ueberrest der entfernten Auto-Update-Funktion)
+- Ungenutzte Newtonsoft.Json-Abhaengigkeit (Code nutzt System.Text.Json)
+- Unused using `BitVector32` in EnterNamesWindow
+
+## [v1.78] - 2023-09-17
+
+### Fixed
+- Fix for recent sessions
+
+## [v1.77] - 2023-09-10
+
+### Fixed
+- NumericUpDown control appended `,0` — fixed formatting
+
+## [v1.76] - 2023-05-28
+
+### Added
+- Recent sessions menu
+- Total duration option for sessions
+
+## [v1.75] - 2023-02-25
+
+### Changed
+- Migrated from WinForms to Avalonia UI (cross-platform)
+- Build workflow creates Windows, Linux, and macOS releases
+
+### Added
+- About dialog with version info
+- Session load/save functionality (.vpcsession files)
+- Command-line startup with config file
+- Skip current driver button
+- Randomize participants button
+
+## [v1.74] - 2023-02-05
+
+### Added
+- Full-screen animation when driver changes
+- Draggable chromeless session window
+- Application icon
+
+## [0.0.1] - 2022-07-29
+
+### Added
+- Initial release
+- Pair coding session timer with participant rotation
+- Up to 10 participants
+- Configurable turn duration
+- Always-on-top timer window
+- Recommended navigator display

Requirements/R0101-Wartung-2026-04-03.md

@@ -2,7 +2,7 @@
 id: R0101
 titel: "Repository-Wartung 2026-04-03"
 typ: Wartung
-status: Offen
+status: Erledigt
 erstellt: 2026-04-03
 ---
 

Source/VisualPairCoding/.editorconfig

@@ -0,0 +1,58 @@
+# Top-level EditorConfig
+root = true
+
+# All files
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = crlf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+# XML / XAML files
+[*.{xml,axaml,xaml,csproj,props,targets,sln}]
+indent_size = 2
+
+# JSON files
+[*.json]
+indent_size = 2
+
+# Markdown files
+[*.md]
+trim_trailing_whitespace = false
+
+# C# files
+[*.cs]
+# Organize usings
+dotnet_sort_system_directives_first = true
+dotnet_separate_import_directive_groups = false
+
+# this. preferences
+dotnet_style_qualification_for_field = false:suggestion
+dotnet_style_qualification_for_property = false:suggestion
+dotnet_style_qualification_for_method = false:suggestion
+dotnet_style_qualification_for_event = false:suggestion
+
+# Language keywords vs BCL types preferences
+dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
+dotnet_style_predefined_type_for_member_access = true:suggestion
+
+# var preferences
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+# Expression-level preferences
+csharp_style_expression_bodied_methods = when_on_single_line:suggestion
+csharp_style_expression_bodied_constructors = false:suggestion
+csharp_style_expression_bodied_properties = true:suggestion
+
+# Namespace preferences
+csharp_style_namespace_declarations = file_scoped:suggestion
+
+# New line preferences
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true

Source/VisualPairCoding/VisualPairCoding.AvaloniaUI/EnterNamesWindow.axaml.cs

@@ -186,56 +186,40 @@ public void LoadSessionIntoGui(SessionConfiguration session)
         {
             participant1.Focus();
 
-            for (var i = 1; i <= 10; i++)
+            for (var i = 1; i <= MaxParticipants; i++)
             {
-                var control = this.FindControl<TextBox>("participant" + i); 
-
+                var control = GetParticipantTextBox(i);
                 if (control != null)
                 {
-                    control.Text = "";
+                    control.Text = (i - 1 < session.Participants.Length)
+                        ? session.Participants[i - 1].Trim()
+                        : "";
                 }
             }
 
-            for (var i = 1; i <= session.Participants.Length; i++)
-            {
-                var control = this.FindControl<TextBox>("participant" + i);
+            minutesPerTurn.Value = session.SessionLength;
+        }
 
-                if (control != null)
-                {
-                    control.Text = session.Participants[i - 1].Trim();
-                }
-            }
+        private const int MaxParticipants = 10;
 
-            minutesPerTurn.Value = session.SessionLength;
+        private TextBox? GetParticipantTextBox(int index)
+        {
+            return this.FindControl<TextBox>("participant" + index);
         }
 
         private void RandomizeParticipants(object? sender, RoutedEventArgs args)
         {
             var participants = GetParticipants();
-
-            participant1.Text = "";
-            participant2.Text = "";
-            participant3.Text = "";
-            participant4.Text = "";
-            participant5.Text = "";
-            participant6.Text = "";
-            participant7.Text = "";
-            participant8.Text = "";
-            participant9.Text = "";
-            participant10.Text = "";
-
             Shuffle(participants);
 
-            if (participants.Length > 0) participant1.Text = participants[0];
-            if (participants.Length > 1) participant2.Text = participants[1];
-            if (participants.Length > 2) participant3.Text = participants[2];
-            if (participants.Length > 3) participant4.Text = participants[3];
-            if (participants.Length > 4) participant5.Text = participants[4];
-            if (participants.Length > 5) participant6.Text = participants[5];
-            if (participants.Length > 6) participant7.Text = participants[6];
-            if (participants.Length > 7) participant8.Text = participants[7];
-            if (participants.Length > 8) participant9.Text = participants[8];
-            if (participants.Length > 9) participant10.Text = participants[9];
+            for (var i = 1; i <= MaxParticipants; i++)
+            {
+                var control = GetParticipantTextBox(i);
+                if (control != null)
+                {
+                    control.Text = (i - 1 < participants.Length) ? participants[i - 1] : "";
+                }
+            }
         }
 
         private static readonly Random random = new();
@@ -251,25 +235,17 @@ public static void Shuffle<T>(IList<T> list)
             }
         }
 
-        private static void AddParticipantIfAvailable(string name, List<string> participants)
-        {
-            if (!string.IsNullOrWhiteSpace(name))
-                participants.Add(name);
-        }
-
         private string[] GetParticipants()
         {
             var participants = new List<string>();
-            AddParticipantIfAvailable(participant2.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant1.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant3.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant4.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant5.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant6.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant7.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant8.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant9.Text ?? string.Empty, participants);
-            AddParticipantIfAvailable(participant10.Text ?? string.Empty, participants);
+
+            for (var i = 1; i <= MaxParticipants; i++)
+            {
+                var control = GetParticipantTextBox(i);
+                var text = control?.Text ?? string.Empty;
+                if (!string.IsNullOrWhiteSpace(text))
+                    participants.Add(text);
+            }
 
             return participants.ToArray();
         }