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"content": "<nav class=\"breadcrumb\">\n <a href=\"\/docs\">Dokumentation<\/a> »\n <a href=\"\/docs\/frontend\">Frontend<\/a> »\n Chat UI Redesign\n<\/nav>\n\n<h1>Chat UI Redesign: 3-Spalten-Layout<\/h1>\n\n<p><strong>Task #424<\/strong> - KORRIGIERTER Implementierungsplan<br>\n<strong>Version:<\/strong> 2.0 (nach kritischem Review)<br>\n<strong>Datum:<\/strong> 2025-12-27<\/p>\n\n<hr>\n\n<h2>Architektur-Entscheidungen<\/h2>\n\n<h3>Wiederverwendung bestehender Infrastruktur<\/h3>\n\n<table>\n <thead>\n <tr><th>Komponente<\/th><th>Status<\/th><th>Aktion<\/th><\/tr>\n <\/thead>\n <tbody>\n <tr><td><code>ManageConfigUseCase<\/code><\/td><td>Existiert<\/td><td>Wiederverwenden<\/td><\/tr>\n <tr><td><code>ContentConfigRepository<\/code><\/td><td>Existiert<\/td><td>Wiederverwenden<\/td><\/tr>\n <tr><td><code>ConfigController<\/code> (Web)<\/td><td>Existiert<\/td><td>Nicht ändern<\/td><\/tr>\n <tr><td><code>Controller\\Api\\ConfigController<\/code><\/td><td>Fehlt<\/td><td>NEU erstellen<\/td><\/tr>\n <\/tbody>\n<\/table>\n\n<h3>Korrigierte Prinzipien<\/h3>\n\n<table>\n <thead>\n <tr><th>Prinzip<\/th><th>Alter Plan<\/th><th>Korrektur<\/th><\/tr>\n <\/thead>\n <tbody>\n <tr><td><strong>SRP<\/strong><\/td><td>ChatController erweitern<\/td><td>Neuer Api\\ConfigController<\/td><\/tr>\n <tr><td><strong>DRY<\/strong><\/td><td>Doppelte Dropdowns<\/td><td>Settings-Bereich entfernen<\/td><\/tr>\n <tr><td><strong>MVC<\/strong><\/td><td>Version-Logik im Controller<\/td><td>UseCase nutzen<\/td><\/tr>\n <tr><td><strong>ISP<\/strong><\/td><td>Interface unvollständig<\/td><td>Interface erweitern<\/td><\/tr>\n <tr><td><strong>YAGNI<\/strong><\/td><td>History-Browser<\/td><td>Nur Save = neue Version<\/td><\/tr>\n <tr><td><strong>WCAG<\/strong><\/td><td>Fehlende ARIA<\/td><td>Vollständige A11y<\/td><\/tr>\n <\/tbody>\n<\/table>\n\n<hr>\n\n<h2>Dateien und Änderungen<\/h2>\n\n<h3>1. NEUER Controller: src\/Controller\/Api\/ConfigController.php<\/h3>\n\n<pre><code><?php\n\ndeclare(strict_types=1);\n\nnamespace Controller\\Api;\n\n\/\/ @responsibility: JSON-API für Config-Operationen (Chat-Integration)\n\nuse Framework\\Controller;\nuse UseCases\\Config\\ManageConfigUseCase;\n\nclass ConfigController extends Controller\n{\n public function __construct(\n private ManageConfigUseCase $configUseCase\n ) {\n }\n\n \/**\n * GET \/api\/v1\/config\/{id}\n * Lädt Config mit Content für Anzeige\n *\/\n public function show(string $id): void\n {\n $config = $this->configUseCase->getById((int) $id);\n \n if ($config === null) {\n $this->json(['error' => 'Config nicht gefunden'], 404);\n return;\n }\n\n $this->json([\n 'id' => $config->id,\n 'name' => $config->name,\n 'type' => $config->type,\n 'content' => $config->content,\n 'version' => $config->version,\n ]);\n }\n\n \/**\n * POST \/api\/v1\/config\/{id}\n * Speichert neue Version (auto-increment)\n *\/\n public function update(string $id): void\n {\n $this->requireCsrf();\n\n $config = $this->configUseCase->getById((int) $id);\n if ($config === null) {\n $this->json(['error' => 'Config nicht gefunden'], 404);\n return;\n }\n\n $newContent = $_POST['content'] ?? '';\n \n \/\/ Auto-increment Version\n $currentVersion = $config->version ?? '1.0';\n $versionParts = explode('.', $currentVersion);\n $newVersion = $versionParts[0] . '.' . ((int) ($versionParts[1] ?? 0) + 1);\n\n $result = $this->configUseCase->update(\n id: (int) $id,\n name: $config->name,\n slug: $config->slug,\n description: $config->description,\n content: $newContent,\n newVersion: $newVersion,\n changeDescription: 'Chat UI Update',\n status: $config->status,\n parentId: $config->parentId\n );\n\n if (!$result->success) {\n $this->json(['error' => $result->message], 400);\n return;\n }\n\n $this->json([\n 'success' => true,\n 'version' => $newVersion,\n 'message' => \"Version {$newVersion} gespeichert\",\n ]);\n }\n}<\/code><\/pre>\n\n<p><strong>Zeilen:<\/strong> ~70 | <strong>Dependencies:<\/strong> 1 (ManageConfigUseCase) | <strong>SRP:<\/strong> Nur Config-API<\/p>\n\n<hr>\n\n<h3>2. Routes: routes\/api.php<\/h3>\n\n<p><strong>Hinzufügen:<\/strong><\/p>\n\n<pre><code>\/\/ Config API (für Chat-Integration)\nuse Controller\\Api\\ConfigController;\n\n$router->get('\/api\/v1\/config\/{id}', [ConfigController::class, 'show']);\n$router->post('\/api\/v1\/config\/{id}', [ConfigController::class, 'update']);<\/code><\/pre>\n\n<hr>\n\n<h3>3. Interface erweitern: src\/Domain\/Repository\/ContentConfigRepositoryInterface.php<\/h3>\n\n<pre><code>interface ContentConfigRepositoryInterface\n{\n \/\/ ... bestehende Methoden ...\n\n \/**\n * Save version to history before update.\n *\/\n public function saveHistory(\n int $configId,\n string $content,\n string $version,\n string $changedBy,\n string $changeDescription\n ): void;\n\n \/**\n * Get version history for a config.\n *\n * @return array<int, array<string, mixed>>\n *\/\n public function getHistory(int $configId, int $limit = 10): array;\n}<\/code><\/pre>\n\n<hr>\n\n<h3>4. View: src\/View\/chat\/index.php<\/h3>\n\n<p><strong>ENTFERNEN aus <code>.chat-settings--advanced<\/code>:<\/strong><\/p>\n<ul>\n <li><code>select[name=\"author_profile_id\"]<\/code><\/li>\n <li><code>select[name=\"system_prompt_id\"]<\/code><\/li>\n <li><code>select[name=\"structure_id\"]<\/code><\/li>\n<\/ul>\n\n<p><strong>NEU einfügen nach <code><aside class=\"chat-sidebar\">...<\/aside><\/code>:<\/strong><\/p>\n\n<pre><code><!-- Config Panel -->\n<aside class=\"chat-config\" id=\"configPanel\">\n <div class=\"chat-config__header\">\n <span>Konfiguration<\/span>\n <\/div>\n\n <!-- System Prompt -->\n <div class=\"chat-config__section\" data-config-type=\"system_prompt\">\n <label for=\"configSystemPrompt\" class=\"chat-config__label\">System Prompt<\/label>\n <div class=\"chat-config__row\">\n <select name=\"system_prompt_id\" id=\"configSystemPrompt\" class=\"chat-config__select\">\n <?php foreach ($systemPrompts ?? [] as $prompt): ?>\n <option value=\"<?= $prompt['id'] ?>\"\n data-content=\"<?= htmlspecialchars($prompt['content'] ?? '{}') ?>\">\n <?= htmlspecialchars($prompt['name']) ?>\n <\/option>\n <?php endforeach; ?>\n <\/select>\n <button type=\"button\" \n class=\"chat-config__toggle\"\n aria-expanded=\"false\"\n aria-controls=\"systemPromptEdit\"\n aria-label=\"System Prompt bearbeiten\">\n <span aria-hidden=\"true\">▸<\/span>\n <\/button>\n <\/div>\n <div class=\"chat-config__edit\" id=\"systemPromptEdit\" hidden>\n <textarea id=\"systemPromptText\" class=\"chat-config__textarea\" rows=\"8\"><\/textarea>\n <button type=\"button\" class=\"chat-config__save\" data-config-id=\"\">\n Speichern\n <\/button>\n <\/div>\n <\/div>\n <!-- ... weitere Sections (Struktur, Autor-Profil) ... -->\n<\/aside><\/code><\/pre>\n\n<hr>\n\n<h3>5. CSS: public\/css\/chat-redesign.css<\/h3>\n\n<pre><code>\/* CONFIG PANEL (3-Spalten-Layout) *\/\n\n.chat-config {\n width: 300px;\n background: var(--chat-sidebar-bg);\n border-right: 1px solid var(--chat-border);\n display: flex;\n flex-direction: column;\n flex-shrink: 0;\n overflow-y: auto;\n}\n\n.chat-config__header {\n padding: 16px;\n font-size: 12px;\n font-weight: 600;\n text-transform: uppercase;\n letter-spacing: 0.5px;\n color: var(--chat-text-secondary);\n border-bottom: 1px solid var(--chat-border);\n}\n\n.chat-config__section { padding: 12px 16px; }\n.chat-config__label { display: block; font-size: 11px; margin-bottom: 6px; }\n.chat-config__row { display: flex; gap: 8px; align-items: center; }\n.chat-config__select { flex: 1; padding: 8px 10px; border-radius: 6px; }\n.chat-config__toggle { padding: 6px 10px; border-radius: 6px; cursor: pointer; }\n.chat-config__textarea { width: 100%; font-family: monospace; font-size: 12px; }\n.chat-config__save { width: 100%; padding: 8px; background: var(--chat-accent); }\n\n@media (max-width: 1024px) {\n .chat-config { display: none; }\n}<\/code><\/pre>\n\n<hr>\n\n<h2>Zusammenfassung der Änderungen<\/h2>\n\n<table>\n <thead>\n <tr><th>Datei<\/th><th>Aktion<\/th><th>Zeilen<\/th><\/tr>\n <\/thead>\n <tbody>\n <tr><td><code>src\/Controller\/Api\/ConfigController.php<\/code><\/td><td>NEU<\/td><td>~70<\/td><\/tr>\n <tr><td><code>routes\/api.php<\/code><\/td><td>ERWEITERN<\/td><td>+3<\/td><\/tr>\n <tr><td><code>src\/Domain\/Repository\/ContentConfigRepositoryInterface.php<\/code><\/td><td>ERWEITERN<\/td><td>+15<\/td><\/tr>\n <tr><td><code>src\/View\/chat\/index.php<\/code><\/td><td>ÄNDERN<\/td><td>~100<\/td><\/tr>\n <tr><td><code>public\/css\/chat-redesign.css<\/code><\/td><td>ERWEITERN<\/td><td>~120<\/td><\/tr>\n <\/tbody>\n<\/table>\n\n<p><strong>Total neue Zeilen:<\/strong> ~310 | <strong>Geänderte Dateien:<\/strong> 5 | <strong>Neue Dateien:<\/strong> 1<\/p>\n\n<hr>\n\n<h2>Checkliste vor Implementation<\/h2>\n\n<ul>\n <li><code>ManageConfigUseCase<\/code> im DI-Container registriert?<\/li>\n <li>PHPStan Level 5+ prüfen<\/li>\n <li>WCAG: Alle ARIA-Attribute korrekt?<\/li>\n <li>Contract #5 (layered-architecture): Kein SQL im Controller?<\/li>\n <li>Contract #4 (js-browser): Keine == Vergleiche?<\/li>\n <li>Contract #2 (css): Focus-Styles vorhanden?<\/li>\n<\/ul>\n\n<hr>\n\n<h2>Nicht ... 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"text": "{\n \"success\": true,\n \"doc\": {\n \"id\": 140,\n \"parent_id\": 144,\n \"slug\": \"chat-ui-redesign-3-spalten\",\n \"path\": \"\/frontend\/chat-ui-redesign-3-spalten\",\n \"title\": \"Chat UI Redesign: 3-Spalten-Layout (KORRIGIERT)\",\n \"description\": \"Vollständiger Implementierungsplan für Task #424: 3-Spalten-Layout mit Config-Panel\",\n \"content\": \"<nav class=\\\"breadcrumb\\\">\\n <a href=\\\"\/docs\\\">Dokumentation<\/a> »\\n <a href=\\\"\/docs\/frontend\\\">Frontend<\/a> »\\n Chat UI Redesign\\n<\/nav>\\n\\n<h1>Chat UI Redesign: 3-Spalten-Layout<\/h1>\\n\\n<p><strong>Task #424<\/strong> - KORRIGIERTER Implementierungsplan<br>\\n<strong>Version:<\/strong> 2.0 (nach kritischem Review)<br>\\n<strong>Datum:<\/strong> 2025-12-27<\/p>\\n\\n<hr>\\n\\n<h2>Architektur-Entscheidungen<\/h2>\\n\\n<h3>Wiederverwendung bestehender Infrastruktur<\/h3>\\n\\n<table>\\n <thead>\\n <tr><th>Komponente<\/th><th>Status<\/th><th>Aktion<\/th><\/tr>\\n <\/thead>\\n <tbody>\\n <tr><td><code>ManageConfigUseCase<\/code><\/td><td>Existiert<\/td><td>Wiederverwenden<\/td><\/tr>\\n <tr><td><code>ContentConfigRepository<\/code><\/td><td>Existiert<\/td><td>Wiederverwenden<\/td><\/tr>\\n <tr><td><code>ConfigController<\/code> (Web)<\/td><td>Existiert<\/td><td>Nicht ändern<\/td><\/tr>\\n <tr><td><code>Controller\\\\Api\\\\ConfigController<\/code><\/td><td>Fehlt<\/td><td>NEU erstellen<\/td><\/tr>\\n <\/tbody>\\n<\/table>\\n\\n<h3>Korrigierte Prinzipien<\/h3>\\n\\n<table>\\n <thead>\\n <tr><th>Prinzip<\/th><th>Alter Plan<\/th><th>Korrektur<\/th><\/tr>\\n <\/thead>\\n <tbody>\\n <tr><td><strong>SRP<\/strong><\/td><td>ChatController erweitern<\/td><td>Neuer Api\\\\ConfigController<\/td><\/tr>\\n <tr><td><strong>DRY<\/strong><\/td><td>Doppelte Dropdowns<\/td><td>Settings-Bereich entfernen<\/td><\/tr>\\n <tr><td><strong>MVC<\/strong><\/td><td>Version-Logik im Controller<\/td><td>UseCase nutzen<\/td><\/tr>\\n <tr><td><strong>ISP<\/strong><\/td><td>Interface unvollständig<\/td><td>Interface erweitern<\/td><\/tr>\\n <tr><td><strong>YAGNI<\/strong><\/td><td>History-Browser<\/td><td>Nur Save = neue Version<\/td><\/tr>\\n <tr><td><strong>WCAG<\/strong><\/td><td>Fehlende ARIA<\/td><td>Vollständige A11y<\/td><\/tr>\\n <\/tbody>\\n<\/table>\\n\\n<hr>\\n\\n<h2>Dateien und Änderungen<\/h2>\\n\\n<h3>1. NEUER Controller: src\/Controller\/Api\/ConfigController.php<\/h3>\\n\\n<pre><code><?php\\n\\ndeclare(strict_types=1);\\n\\nnamespace Controller\\\\Api;\\n\\n\/\/ @responsibility: JSON-API für Config-Operationen (Chat-Integration)\\n\\nuse Framework\\\\Controller;\\nuse UseCases\\\\Config\\\\ManageConfigUseCase;\\n\\nclass ConfigController extends Controller\\n{\\n public function __construct(\\n private ManageConfigUseCase $configUseCase\\n ) {\\n }\\n\\n \/**\\n * GET \/api\/v1\/config\/{id}\\n * Lädt Config mit Content für Anzeige\\n *\/\\n public function show(string $id): void\\n {\\n $config = $this->configUseCase->getById((int) $id);\\n \\n if ($config === null) {\\n $this->json(['error' => 'Config nicht gefunden'], 404);\\n return;\\n }\\n\\n $this->json([\\n 'id' => $config->id,\\n 'name' => $config->name,\\n 'type' => $config->type,\\n 'content' => $config->content,\\n 'version' => $config->version,\\n ]);\\n }\\n\\n \/**\\n * POST \/api\/v1\/config\/{id}\\n * Speichert neue Version (auto-increment)\\n *\/\\n public function update(string $id): void\\n {\\n $this->requireCsrf();\\n\\n $config = $this->configUseCase->getById((int) $id);\\n if ($config === null) {\\n $this->json(['error' => 'Config nicht gefunden'], 404);\\n return;\\n }\\n\\n $newContent = $_POST['content'] ?? '';\\n \\n \/\/ Auto-increment Version\\n $currentVersion = $config->version ?? '1.0';\\n $versionParts = explode('.', $currentVersion);\\n $newVersion = $versionParts[0] . '.' . ((int) ($versionParts[1] ?? 0) + 1);\\n\\n $result = $this->configUseCase->update(\\n id: (int) $id,\\n name: $config->name,\\n slug: $config->slug,\\n description: $config->description,\\n content: $newContent,\\n newVersion: $newVersion,\\n changeDescription: 'Chat UI Update',\\n status: $config->status,\\n parentId: $config->parentId\\n );\\n\\n if (!$result->success) {\\n $this->json(['error' => $result->message], 400);\\n return;\\n }\\n\\n $this->json([\\n 'success' => true,\\n 'version' => $newVersion,\\n 'message' => \\\"Version {$newVersion} gespeichert\\\",\\n ]);\\n }\\n}<\/code><\/pre>\\n\\n<p><strong>Zeilen:<\/strong> ~70 | <strong>Dependencies:<\/strong> 1 (ManageConfigUseCase) | <strong>SRP:<\/strong> Nur Config-API<\/p>\\n\\n<hr>\\n\\n<h3>2. Routes: routes\/api.php<\/h3>\\n\\n<p><strong>Hinzufügen:<\/strong><\/p>\\n\\n<pre><code>\/\/ Config API (für Chat-Integration)\\nuse Controller\\\\Api\\\\ConfigController;\\n\\n$router->get('\/api\/v1\/config\/{id}', [ConfigController::class, 'show']);\\n$router->post('\/api\/v1\/config\/{id}', [ConfigController::class, 'update']);<\/code><\/pre>\\n\\n<hr>\\n\\n<h3>3. Interface erweitern: src\/Domain\/Repository\/ContentConfigRepositoryInterface.php<\/h3>\\n\\n<pre><code>interface ContentConfigRepositoryInterface\\n{\\n \/\/ ... bestehende Methoden ...\\n\\n \/**\\n * Save version to history before update.\\n *\/\\n public function saveHistory(\\n int $configId,\\n string $content,\\n string $version,\\n string $changedBy,\\n string $changeDescription\\n ): void;\\n\\n \/**\\n * Get version history for a config.\\n *\\n * @return array<int, array<string, mixed>>\\n *\/\\n public function getHistory(int $configId, int $limit = 10): array;\\n}<\/code><\/pre>\\n\\n<hr>\\n\\n<h3>4. View: src\/View\/chat\/index.php<\/h3>\\n\\n<p><strong>ENTFERNEN aus <code>.chat-settings--advanced<\/code>:<\/strong><\/p>\\n<ul>\\n <li><code>select[name=\\\"author_profile_id\\\"]<\/code><\/li>\\n <li><code>select[name=\\\"system_prompt_id\\\"]<\/code><\/li>\\n <li><code>select[name=\\\"structure_id\\\"]<\/code><\/li>\\n<\/ul>\\n\\n<p><strong>NEU einfügen nach <code><aside class=\\\"chat-sidebar\\\">...<\/aside><\/code>:<\/strong><\/p>\\n\\n<pre><code><!-- Config Panel -->\\n<aside class=\\\"chat-config\\\" id=\\\"configPanel\\\">\\n <div class=\\\"chat-config__header\\\">\\n <span>Konfiguration<\/span>\\n <\/div>\\n\\n <!-- System Prompt -->\\n <div class=\\\"chat-config__section\\\" data-config-type=\\\"system_prompt\\\">\\n <label for=\\\"configSystemPrompt\\\" class=\\\"chat-config__label\\\">System Prompt<\/label>\\n <div class=\\\"chat-config__row\\\">\\n <select name=\\\"system_prompt_id\\\" id=\\\"configSystemPrompt\\\" class=\\\"chat-config__select\\\">\\n <?php foreach ($systemPrompts ?? [] as $prompt): ?>\\n <option value=\\\"<?= $prompt['id'] ?>\\\"\\n data-content=\\\"<?= htmlspecialchars($prompt['content'] ?? '{}') ?>\\\">\\n <?= htmlspecialchars($prompt['name']) ?>\\n <\/option>\\n <?php endforeach; ?>\\n <\/select>\\n <button type=\\\"button\\\" \\n class=\\\"chat-config__toggle\\\"\\n aria-expanded=\\\"false\\\"\\n aria-controls=\\\"systemPromptEdit\\\"\\n aria-label=\\\"System Prompt bearbeiten\\\">\\n <span aria-hidden=\\\"true\\\">▸<\/span>\\n <\/button>\\n <\/div>\\n <div class=\\\"chat-config__edit\\\" id=\\\"systemPromptEdit\\\" hidden>\\n <textarea id=\\\"systemPromptText\\\" class=\\\"chat-config__textarea\\\" rows=\\\"8\\\"><\/textarea>\\n <button type=\\\"button\\\" class=\\\"chat-config__save\\\" data-config-id=\\\"\\\">\\n Speichern\\n <\/button>\\n <\/div>\\n <\/div>\\n <!-- ... weitere Sections (Struktur, Autor-Profil) ... -->\\n<\/aside><\/code><\/pre>\\n\\n<hr>\\n\\n<h3>5. CSS: public\/css\/chat-redesign.css<\/h3>\\n\\n<pre><code>\/* CONFIG PANEL (3-Spalten-Layout) *\/\\n\\n.chat-config {\\n width: 300px;\\n background: var(--chat-sidebar-bg);\\n border-right: 1px solid var(--chat-border);\\n display: flex;\\n flex-direction: column;\\n flex-shrink: 0;\\n overflow-y: auto;\\n}\\n\\n.chat-config__header {\\n padding: 16px;\\n font-size: 12px;\\n font-weight: 600;\\n text-transform: uppercase;\\n letter-spacing: 0.5px;\\n color: var(--chat-text-secondary);\\n border-bottom: 1px solid var(--chat-border);\\n}\\n\\n.chat-config__section { padding: 12px 16px; }\\n.chat-config__label { display: block; font-size: 11px; margin-bottom: 6px; }\\n.chat-config__row { display: flex; gap: 8px; align-items: center; }\\n.chat-config__select { flex: 1; padding: 8px 10px; border-radius: 6px; }\\n.chat-config__toggle { padding: 6px 10px; border-radius: 6px; cursor: pointer; }\\n.chat-config__textarea { width: 100%; font-family: monospace; font-size: 12px; }\\n.chat-config__save { width: 100%; padding: 8px; background: var(--chat-accent); }\\n\\n@media (max-width: 1024px) {\\n .chat-config { display: none; }\\n}<\/code><\/pre>\\n\\n<hr>\\n\\n<h2>Zusammenfassung der Änderungen<\/h2>\\n\\n<table>\\n <thead>\\n <tr><th>Datei<\/th><th>Aktion<\/th><th>Zeilen<\/th><\/tr>\\n <\/thead>\\n <tbody>\\n <tr><td><code>src\/Controller\/Api\/ConfigController.php<\/code><\/td><td>NEU<\/td><td>~70<\/td><\/tr>\\n <tr><td><code>routes\/api.php<\/code><\/td><td>ERWEITERN<\/td><td>+3<\/td><\/tr>\\n <tr><td><code>src\/Domain\/Repository\/ContentConfigRepositoryInterface.php<\/code><\/td><td>ERWEITERN<\/td><td>+15<\/td><\/tr>\\n <tr><td><code>src\/View\/chat\/index.php<\/code><\/... 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