api/ai.php

@@ -205,6 +205,99 @@ try {
         exit;
     }
 
+    // 5. Persoonlijke AI Dagbriefing genereren
+    if ($action === 'daily_briefing') {
+        $data = json_decode(file_get_contents('php://input'), true);
+        $date = !empty($data['date']) ? trim($data['date']) : date('Y-m-d');
+        $today = date('Y-m-d');
+
+        // Haal openstaande taken van vandaag op
+        $stmtPlan = $db->prepare("SELECT id FROM daily_plans WHERE user_id = ? AND plan_date = ?");
+        $stmtPlan->execute([$user['id'], $date]);
+        $planId = $stmtPlan->fetchColumn();
+
+        $isToday = ($date === $today);
+        $taskFilter = $planId
+            ? "t.daily_plan_id = " . (int)$planId . ($isToday ? " OR t.daily_plan_id IS NULL" : "")
+            : ($isToday ? "t.daily_plan_id IS NULL" : "1=0");
+
+        $tasks = $db->query("
+            SELECT id, title, priority, time_block_start, duration_minutes
+            FROM tasks
+            WHERE user_id = {$user['id']} AND is_completed = 0 AND ({$taskFilter})
+            ORDER BY priority ASC, time_block_start ASC
+            LIMIT 15
+        ")->fetchAll();
+
+        // Haal gisteren niet-voltooide taken op
+        $yesterday = date('Y-m-d', strtotime('-1 day', strtotime($date)));
+        $stmtYest = $db->prepare("SELECT id FROM daily_plans WHERE user_id = ? AND plan_date = ?");
+        $stmtYest->execute([$user['id'], $yesterday]);
+        $yesterdayPlanId = $stmtYest->fetchColumn();
+        $unfinishedYest = [];
+        if ($yesterdayPlanId) {
+            $stmtUnf = $db->prepare("
+                SELECT title FROM tasks
+                WHERE user_id = ? AND daily_plan_id = ? AND is_completed = 0
+                LIMIT 5
+            ");
+            $stmtUnf->execute([$user['id'], $yesterdayPlanId]);
+            $unfinishedYest = $stmtUnf->fetchAll();
+        }
+
+        // Haal Outlook meetings op als beschikbaar
+        $meetings = [];
+        try {
+            require_once __DIR__ . '/../includes/integrations/microsoft.php';
+            $meetings = microsoft_fetch_today_events($user['id'], $date);
+        } catch (Throwable $e) {
+            // meetings niet beschikbaar, geen probleem
+        }
+
+        // Haal urgente Jira tickets op als beschikbaar
+        $jiraIssues = [];
+        try {
+            require_once __DIR__ . '/../includes/integrations/jira.php';
+            $jiraData = jira_get_dashboard_data($user['id'], false);
+            $jiraIssues = array_merge(
+                $jiraData['assigned_issues'] ?? [],
+                $jiraData['team_issues'] ?? []
+            );
+        } catch (Throwable $e) {
+            // Jira niet beschikbaar, geen probleem
+        }
+
+        $aiSettings = get_ai_settings();
+        if (empty($aiSettings['ai_enabled']) || empty($aiSettings['has_key'])) {
+            echo json_encode(['error' => 'AI Co-Pilot is niet geconfigureerd']);
+            exit;
+        }
+
+        $aiRes = fociz_ai_daily_briefing(
+            $user['name'] ?? 'Jij',
+            $date,
+            $tasks,
+            $meetings,
+            $jiraIssues,
+            $unfinishedYest
+        );
+
+        if (!$aiRes['success']) {
+            echo json_encode(['error' => $aiRes['error']]);
+            exit;
+        }
+
+        echo json_encode([
+            'success'    => true,
+            'greeting'   => $aiRes['greeting'],
+            'focus_task' => $aiRes['focus_task'],
+            'tip'        => $aiRes['tip'],
+            'warnings'   => $aiRes['warnings'],
+            'date'       => $date,
+        ]);
+        exit;
+    }
+
     echo json_encode(['error' => 'Onbekende actie']);
 } catch (Exception $e) {
     http_response_code(500);

api/planner.php

@@ -486,6 +486,120 @@ try {
         exit;
     }
 
+    // --- V2.0: Subtaken & Checklists ---
+
+    // 7. Subtaak toevoegen aan een taak
+    if ($action === 'add_subtask') {
+        $data = json_decode(file_get_contents('php://input'), true);
+        $taskId = (int)($data['task_id'] ?? 0);
+        $title  = trim($data['title'] ?? '');
+
+        if (!$taskId || empty($title)) {
+            echo json_encode(['error' => 'Taak-ID en titel zijn verplicht']);
+            exit;
+        }
+
+        // Controleer of de taak van deze gebruiker is
+        $stmtCheck = $db->prepare("SELECT id FROM tasks WHERE id = ? AND user_id = ?");
+        $stmtCheck->execute([$taskId, $user['id']]);
+        if (!$stmtCheck->fetchColumn()) {
+            echo json_encode(['error' => 'Taak niet gevonden']);
+            exit;
+        }
+
+        // Bereken positie (achteraan)
+        $stmtPos = $db->prepare("SELECT COALESCE(MAX(position), -1) + 1 FROM task_subtasks WHERE task_id = ?");
+        $stmtPos->execute([$taskId]);
+        $position = (int)$stmtPos->fetchColumn();
+
+        $stmt = $db->prepare("
+            INSERT INTO task_subtasks (task_id, user_id, title, is_completed, position)
+            VALUES (?, ?, ?, 0, ?)
+        ");
+        $stmt->execute([$taskId, $user['id'], substr($title, 0, 255), $position]);
+        $subtaskId = (int)$db->lastInsertId();
+
+        echo json_encode([
+            'success'  => true,
+            'subtask'  => [
+                'id'           => $subtaskId,
+                'task_id'      => $taskId,
+                'title'        => $title,
+                'is_completed' => 0,
+                'position'     => $position,
+            ]
+        ]);
+        exit;
+    }
+
+    // 8. Subtaak afvinken / openzetten
+    if ($action === 'toggle_subtask') {
+        $data = json_decode(file_get_contents('php://input'), true);
+        $subtaskId   = (int)($data['subtask_id'] ?? 0);
+        $isCompleted = !empty($data['is_completed']) ? 1 : 0;
+
+        if (!$subtaskId) {
+            echo json_encode(['error' => 'Subtaak-ID ontbreekt']);
+            exit;
+        }
+
+        $stmt = $db->prepare("
+            UPDATE task_subtasks SET is_completed = ?
+            WHERE id = ? AND user_id = ?
+        ");
+        $stmt->execute([$isCompleted, $subtaskId, $user['id']]);
+
+        echo json_encode(['success' => true, 'is_completed' => $isCompleted]);
+        exit;
+    }
+
+    // 9. Subtaak verwijderen
+    if ($action === 'delete_subtask') {
+        $data = json_decode(file_get_contents('php://input'), true);
+        $subtaskId = (int)($data['subtask_id'] ?? 0);
+
+        if (!$subtaskId) {
+            echo json_encode(['error' => 'Subtaak-ID ontbreekt']);
+            exit;
+        }
+
+        $stmt = $db->prepare("DELETE FROM task_subtasks WHERE id = ? AND user_id = ?");
+        $stmt->execute([$subtaskId, $user['id']]);
+
+        echo json_encode(['success' => true]);
+        exit;
+    }
+
+    // 10. Subtaken ophalen voor een taak
+    if ($action === 'get_subtasks') {
+        $taskId = (int)($_GET['task_id'] ?? 0);
+
+        if (!$taskId) {
+            echo json_encode(['error' => 'Taak-ID ontbreekt']);
+            exit;
+        }
+
+        // Controleer eigenaarschap
+        $stmtCheck = $db->prepare("SELECT id FROM tasks WHERE id = ? AND user_id = ?");
+        $stmtCheck->execute([$taskId, $user['id']]);
+        if (!$stmtCheck->fetchColumn()) {
+            echo json_encode(['error' => 'Taak niet gevonden']);
+            exit;
+        }
+
+        $stmt = $db->prepare("
+            SELECT id, task_id, title, is_completed, position
+            FROM task_subtasks
+            WHERE task_id = ? AND user_id = ?
+            ORDER BY position ASC, created_at ASC
+        ");
+        $stmt->execute([$taskId, $user['id']]);
+        $subtasks = $stmt->fetchAll();
+
+        echo json_encode(['success' => true, 'subtasks' => $subtasks]);
+        exit;
+    }
+
     echo json_encode(['error' => 'Onbekende actie']);
 } catch (Exception $e) {
     http_response_code(500);

config/database.php

@@ -154,6 +154,8 @@ function ensure_tables_exist(PDO $pdo): void {
             "ALTER TABLE board_card_schedules ADD UNIQUE KEY uk_sched_card (card_id)",
             "CREATE TABLE IF NOT EXISTS `password_resets` (`id` INT AUTO_INCREMENT PRIMARY KEY, `email` VARCHAR(191) NOT NULL, `token` VARCHAR(64) NOT NULL UNIQUE, `expires_at` DATETIME NOT NULL, `used_at` DATETIME NULL, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, INDEX (`email`), INDEX (`token`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
             "CREATE TABLE IF NOT EXISTS `jira_queue_filters` (`id` INT AUTO_INCREMENT PRIMARY KEY, `filter_code` VARCHAR(50) NOT NULL UNIQUE, `filter_name` VARCHAR(120) NOT NULL, `project_key` VARCHAR(50) NULL, `jql_clause` TEXT NOT NULL, `description` VARCHAR(255) NULL, `is_active` TINYINT(1) NOT NULL DEFAULT 1, `sort_order` INT NOT NULL DEFAULT 0, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
+            // V2.0: Subtaken & Checklists
+            "CREATE TABLE IF NOT EXISTS `task_subtasks` (`id` INT AUTO_INCREMENT PRIMARY KEY, `task_id` INT NOT NULL, `user_id` INT NOT NULL, `title` VARCHAR(255) NOT NULL, `is_completed` TINYINT(1) NOT NULL DEFAULT 0, `position` INT NOT NULL DEFAULT 0, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, INDEX (`task_id`, `position`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
         ];
         foreach ($colUpgrades as $sql) {
             try {

config/schema.sql

@@ -242,3 +242,18 @@ CREATE TABLE IF NOT EXISTS `app_cache` (
   `expires_at` INT UNSIGNED NOT NULL,
   INDEX `idx_app_cache_expires` (`expires_at`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+-- Fociz V2.0: Subtaken & Checklists per taak
+CREATE TABLE IF NOT EXISTS `task_subtasks` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `task_id` INT NOT NULL,
+  `user_id` INT NOT NULL,
+  `title` VARCHAR(255) NOT NULL,
+  `is_completed` TINYINT(1) NOT NULL DEFAULT 0,
+  `position` INT NOT NULL DEFAULT 0,
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  INDEX (`task_id`, `position`),
+  CONSTRAINT `fk_subtasks_task` FOREIGN KEY (`task_id`) REFERENCES `tasks` (`id`) ON DELETE CASCADE,
+  CONSTRAINT `fk_subtasks_user` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

includes/ai.php

@@ -195,3 +195,86 @@ function fociz_ai_smart_schedule(array $tasks, array $events, array $workdaySett
     return ['success' => true, 'scheduled' => $aiRes['json']['scheduled']];
 }
 
+/**
+ * Genereert een persoonlijke AI dagbriefing op basis van taken, afspraken en Jira tickets
+ *
+ * @param string $userName       Naam van de gebruiker
+ * @param string $date           Datum (Y-m-d)
+ * @param array  $tasks          Openstaande taken van vandaag
+ * @param array  $meetings       Outlook meetings van vandaag
+ * @param array  $jiraIssues     Jira tickets (P1/blokkades)
+ * @param array  $unfinishedYest Gisteren niet voltooide taken
+ * @return array ['success' => bool, 'briefing' => string, 'focus_tip' => string, 'warnings' => array]
+ */
+function fociz_ai_daily_briefing(
+    string $userName,
+    string $date,
+    array $tasks,
+    array $meetings,
+    array $jiraIssues = [],
+    array $unfinishedYest = []
+): array {
+    $dutchDays = ['', 'maandag', 'dinsdag', 'woensdag', 'donderdag', 'vrijdag', 'zaterdag', 'zondag'];
+    $dayName   = $dutchDays[(int)date('N', strtotime($date))] ?? 'vandaag';
+    $dateLabel = $dayName . ' ' . date('j', strtotime($date)) . ' ' . date('F', strtotime($date));
+
+    $taskSummary = array_map(fn($t) => [
+        'title'    => $t['title'],
+        'priority' => $t['priority'] ?? 'P2',
+        'time'     => $t['time_block_start'] ?? null,
+        'duration' => (int)($t['duration_minutes'] ?? 30),
+    ], array_slice($tasks, 0, 10));
+
+    $meetingSummary = array_map(fn($e) => [
+        'subject' => $e['subject'] ?? 'Afspraak',
+        'start'   => $e['start'] ?? null,
+        'end'     => $e['end'] ?? null,
+    ], array_slice($meetings, 0, 8));
+
+    $jiraSummary = array_map(fn($j) => [
+        'key'      => $j['key'] ?? '',
+        'title'    => $j['summary'] ?? '',
+        'priority' => $j['priority'] ?? 'Medium',
+        'status'   => $j['status'] ?? 'Open',
+    ], array_slice(array_filter($jiraIssues, fn($j) => in_array($j['priority'] ?? '', ['Highest', 'High'])), 0, 5));
+
+    $yesterdaySummary = array_map(fn($t) => $t['title'], array_slice($unfinishedYest, 0, 5));
+
+    $systemPrompt = "Je bent de persoonlijke AI Co-Pilot van {$userName} in Fociz. "
+        . "Schrijf een korte, energieke en persoonlijke dagbriefing in het Nederlands voor {$dateLabel}. "
+        . "Wees direct, concreet en vriendelijk. Gebruik geen markdown headers, geen bullet symbolen zoals *, -, •. "
+        . "Geef 1-2 zinnen dagopening + 1 zin over de grootste prioriteit + 1 praktisch focustip. "
+        . "Maximaal 60 woorden totaal. "
+        . "Retourneer een JSON-object met:\n"
+        . "- 'greeting': openingszin (max 20 woorden)\n"
+        . "- 'focus_task': de meest urgente taak of meeting vandaag (max 15 woorden)\n"
+        . "- 'tip': één concrete focustip voor vandaag (max 20 woorden)\n"
+        . "- 'warnings': array van strings, max 2 items — alleen als er iets opvalt (gisteren niet afgerond, urgent Jira, overvolle dag)";
+
+    $userPrompt = json_encode([
+        'date'               => $dateLabel,
+        'tasks_today'        => $taskSummary,
+        'meetings_today'     => $meetingSummary,
+        'urgent_jira'        => $jiraSummary,
+        'unfinished_yesterday' => $yesterdaySummary,
+        'total_tasks'        => count($tasks),
+        'total_meetings'     => count($meetings),
+    ], JSON_UNESCAPED_UNICODE);
+
+    $aiRes = fociz_ai_chat([
+        ['role' => 'system', 'content' => $systemPrompt],
+        ['role' => 'user',   'content' => $userPrompt],
+    ], ['json_mode' => true, 'temperature' => 0.6, 'max_tokens' => 300]);
+
+    if (!$aiRes['success'] || empty($aiRes['json'])) {
+        return ['success' => false, 'error' => $aiRes['error'] ?? 'Kon geen dagbriefing genereren'];
+    }
+
+    return [
+        'success'   => true,
+        'greeting'  => $aiRes['json']['greeting'] ?? "Goedemorgen {$userName}, een nieuwe dag!",
+        'focus_task'=> $aiRes['json']['focus_task'] ?? '',
+        'tip'       => $aiRes['json']['tip'] ?? '',
+        'warnings'  => $aiRes['json']['warnings'] ?? [],
+    ];
+}

includes/integrations/jira.php

@@ -236,6 +236,9 @@ function jira_fetch_issues(string $domain, string $email, string $apiToken, stri
         'description',
         'labels',
         'components',
+        'story_points',
+        'customfield_10016', // Story Points (Jira Cloud standaard)
+        'customfield_10028', // Story Points (alternatief veld sommige instanties)
     ];
 
     // 1. Moderne Atlassian Jira Cloud endpoint (/rest/api/3/search/jql) conform CHANGE-2046 via POST
@@ -389,6 +392,16 @@ function jira_fetch_issues(string $domain, string $email, string $apiToken, stri
             elseif (str_contains($sumLower, 'koppeling')) $onderwerpLogging = 'Koppelingen';
         }
 
+        // Detectie van story points (customfield_10016 is Jira Cloud standaard, met fallback naar alternatieven)
+        $storyPoints = null;
+        if (isset($fields['customfield_10016']) && is_numeric($fields['customfield_10016'])) {
+            $storyPoints = (float)$fields['customfield_10016'];
+        } elseif (isset($fields['customfield_10028']) && is_numeric($fields['customfield_10028'])) {
+            $storyPoints = (float)$fields['customfield_10028'];
+        } elseif (isset($fields['story_points']) && is_numeric($fields['story_points'])) {
+            $storyPoints = (float)$fields['story_points'];
+        }
+
         $issues[] = [
             'key'               => $key,
             'summary'           => $summary,
@@ -409,6 +422,7 @@ function jira_fetch_issues(string $domain, string $email, string $apiToken, stri
             'created'           => $created,
             'updated'           => $updated,
             'url'               => "{$cleanDomain}/browse/{$key}",
+            'story_points'      => $storyPoints,
             'source'            => 'JIRA_LIVE',
         ];
     }

jira.php

@@ -494,10 +494,15 @@ $boardsJson = json_encode($boards, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT
                 <div class="flex items-center space-x-2">
                     <span id="planTicketKeyBadge" class="font-mono text-xs font-bold text-indigo-600 dark:text-indigo-400">FOC-101</span>
                     <span id="planTicketProject" class="text-[11px] text-slate-400">• Fociz Platform</span>
+                    <span id="planSpBadge" class="hidden ml-auto text-[10px] font-bold px-2 py-0.5 rounded-full bg-violet-50 dark:bg-violet-500/10 text-violet-700 dark:text-violet-300 border border-violet-200 dark:border-violet-500/20"></span>
                 </div>
                 <div id="planTicketSummaryText" class="text-xs font-semibold text-slate-800 dark:text-slate-200 mt-1 line-clamp-2">
                     Tweestapsverificatie implementeren
                 </div>
+                <div id="planSpHint" class="hidden mt-1.5 text-[11px] text-violet-600 dark:text-violet-400 flex items-center space-x-1">
+                    <i data-lucide="zap" class="w-3 h-3"></i>
+                    <span id="planSpHintText"></span>
+                </div>
             </div>
 
             <!-- Datum Kiezer -->
@@ -1408,6 +1413,31 @@ function openPlanModal(item) {
     document.getElementById('planTicketProject').innerText = '• ' + (ticket.project || 'Project');
     document.getElementById('planTicketSummaryText').innerText = ticket.summary;
 
+    // Story Points → Duur conversie (1 SP = 30 minuten, configurabel)
+    const spBadge = document.getElementById('planSpBadge');
+    const spHint  = document.getElementById('planSpHint');
+    const spHintText = document.getElementById('planSpHintText');
+    const sp = parseFloat(ticket.story_points);
+    if (!isNaN(sp) && sp > 0) {
+        const spMinutes = Math.round(sp * 30); // 1 SP = 30 minuten
+        const closestDuration = [30, 45, 60, 90, 120].reduce((prev, curr) =>
+            Math.abs(curr - spMinutes) < Math.abs(prev - spMinutes) ? curr : prev
+        );
+        const durationSelect = document.getElementById('planDurationInput');
+        if (durationSelect) {
+            const opt = durationSelect.querySelector(`option[value="${closestDuration}"]`);
+            if (opt) opt.selected = true;
+        }
+        spBadge.textContent = `${sp} SP`;
+        spBadge.classList.remove('hidden');
+        spHintText.textContent = `${sp} story ${sp === 1 ? 'point' : 'points'} ≈ ${spMinutes} min → automatisch ${closestDuration} min ingesteld`;
+        spHint.classList.remove('hidden');
+        spHint.style.display = 'flex';
+    } else {
+        spBadge.classList.add('hidden');
+        spHint.classList.add('hidden');
+    }
+
     // Suggesteer prioriteit op basis van Jira prio
     let focizPrio = 'P2';
     const jp = (ticket.priority || '').toLowerCase();
@@ -1422,6 +1452,7 @@ function openPlanModal(item) {
     const modal = document.getElementById('planTaskModal');
     modal.classList.remove('hidden');
     modal.classList.add('flex');
+    if (typeof lucide !== 'undefined') lucide.createIcons();
 }
 
 function closePlanModal() {

planner.php

@@ -464,6 +464,51 @@ for ($h = $startHour; $h <= $endHour; $h++) {
         </div>
     </div>
 
+    <!-- AI Dagbriefing Banner (async geladen, alleen vandaag) -->
+    <?php if ($isTodaySelected): ?>
+    <div id="aiBriefingBanner" class="fociz-card p-5 relative overflow-hidden border-l-4 border-l-indigo-500 hidden">
+        <!-- Skeleton laadindicator -->
+        <div id="aiBriefingLoading" class="flex items-center space-x-3">
+            <div class="w-8 h-8 rounded-xl bg-indigo-50 dark:bg-indigo-950/50 text-indigo-600 dark:text-indigo-400 flex items-center justify-center flex-shrink-0 animate-pulse">
+                <i data-lucide="sparkles" class="w-4 h-4"></i>
+            </div>
+            <div class="flex-1 space-y-1.5">
+                <div class="h-3 bg-slate-200 dark:bg-slate-800 rounded-lg animate-pulse w-3/4"></div>
+                <div class="h-2.5 bg-slate-200 dark:bg-slate-800 rounded-lg animate-pulse w-1/2"></div>
+            </div>
+        </div>
+        <!-- Inhoud (gevuld via JS) -->
+        <div id="aiBriefingContent" class="hidden">
+            <div class="flex items-start space-x-3">
+                <div class="w-8 h-8 rounded-xl bg-indigo-50 dark:bg-indigo-950/50 text-indigo-600 dark:text-indigo-400 flex items-center justify-center flex-shrink-0 mt-0.5">
+                    <i data-lucide="sparkles" class="w-4 h-4"></i>
+                </div>
+                <div class="flex-1 min-w-0">
+                    <div class="flex items-center space-x-2 mb-1">
+                        <span class="text-[10px] font-black uppercase tracking-wider text-indigo-600 dark:text-indigo-400">AI Co-Pilot · Dagbriefing</span>
+                        <span class="text-[10px] text-slate-400 font-mono"><?= date('H:i') ?></span>
+                    </div>
+                    <p id="aiBriefingGreeting" class="text-sm font-semibold text-slate-900 dark:text-white"></p>
+                    <div id="aiBriefingDetails" class="mt-2 flex flex-wrap gap-x-4 gap-y-1 text-xs text-slate-600 dark:text-slate-400">
+                        <span id="aiBriefingFocusTask" class="hidden flex items-center space-x-1">
+                            <i data-lucide="zap" class="w-3 h-3 text-amber-500 flex-shrink-0"></i>
+                            <span id="aiBriefingFocusText"></span>
+                        </span>
+                        <span id="aiBriefingTip" class="hidden flex items-center space-x-1">
+                            <i data-lucide="lightbulb" class="w-3 h-3 text-emerald-500 flex-shrink-0"></i>
+                            <span id="aiBriefingTipText"></span>
+                        </span>
+                    </div>
+                    <div id="aiBriefingWarnings" class="mt-2 space-y-1 hidden"></div>
+                </div>
+                <button onclick="document.getElementById('aiBriefingBanner').classList.add('hidden')" class="p-1 text-slate-400 hover:text-slate-600 dark:hover:text-slate-300 rounded-lg hover:bg-slate-100 dark:hover:bg-slate-800 transition cursor-pointer flex-shrink-0" title="Sluiten">
+                    <i data-lucide="x" class="w-3.5 h-3.5"></i>
+                </button>
+            </div>
+        </div>
+    </div>
+    <?php endif; ?>
+
     <!-- Modular Customizable Widget Grid Container (Fociz v2.0) -->
     <div class="relative w-full" id="focizWidgetGridContainer">
         <!-- Blueprint Achtergrond Raster (zichtbaar zodra een widget wordt opgepakt) -->
@@ -698,7 +743,9 @@ for ($h = $startHour; $h <= $endHour; $h++) {
                                 </div>
                             <?php else: ?>
                                 <?php foreach ($tasks as $task): ?>
-                                    <div class="fociz-card-interactive group flex items-center justify-between p-3.5 rounded-2xl border <?= $task['is_completed'] ? 'bg-slate-50/50 dark:bg-slate-950/25 border-slate-200/60 dark:border-slate-800/40 opacity-60' : 'bg-white/95 dark:bg-[#111624]/90 border-slate-200/80 dark:border-slate-800/80 hover:border-indigo-400 dark:hover:border-indigo-500/50 shadow-2xs hover:shadow-xs' ?> <?= $task['priority'] === 'P1' ? 'border-l-4 border-l-rose-500' : ($task['priority'] === 'P2' ? 'border-l-4 border-l-amber-500' : 'border-l-4 border-l-indigo-400 dark:border-l-indigo-500') ?> transition min-w-0" id="task-row-<?= $task['id'] ?>">
+                                    <div class="rounded-2xl border <?= $task['is_completed'] ? 'bg-slate-50/50 dark:bg-slate-950/25 border-slate-200/60 dark:border-slate-800/40 opacity-60' : 'bg-white/95 dark:bg-[#111624]/90 border-slate-200/80 dark:border-slate-800/80 shadow-2xs' ?> <?= $task['priority'] === 'P1' ? 'border-l-4 border-l-rose-500' : ($task['priority'] === 'P2' ? 'border-l-4 border-l-amber-500' : 'border-l-4 border-l-indigo-400 dark:border-l-indigo-500') ?> transition min-w-0" id="task-row-<?= $task['id'] ?>">
+                                        <!-- Hoofd taakrij -->
+                                        <div class="fociz-card-interactive group flex items-center justify-between p-3.5 <?= $task['is_completed'] ? '' : 'hover:border-indigo-400 dark:hover:border-indigo-500/50' ?>">
                                             <div class="flex items-center space-x-3 truncate mr-2">
                                                 <button onclick="toggleTask(<?= $task['id'] ?>, <?= $task['is_completed'] ? 0 : 1 ?>)" class="w-5 h-5 rounded-lg border flex items-center justify-center transition <?= $task['is_completed'] ? 'bg-indigo-600 border-indigo-600 text-white font-bold' : 'border-slate-300 dark:border-slate-700 hover:border-indigo-500 bg-white dark:bg-slate-900' ?>">
                                                     <?php if ($task['is_completed']): ?>
@@ -757,6 +804,11 @@ for ($h = $startHour; $h <= $endHour; $h++) {
                                                     </button>
                                                 <?php endif; ?>
 
+                                                <!-- Subtaak toggle knop -->
+                                                <button onclick="toggleSubtaskPanel(<?= $task['id'] ?>)" title="Subtaken / Checklist" class="p-1.5 rounded-lg text-slate-400 hover:text-indigo-600 dark:hover:text-indigo-400 hover:bg-indigo-500/10 opacity-0 group-hover:opacity-100 transition cursor-pointer" id="subtask-btn-<?= $task['id'] ?>">
+                                                    <i data-lucide="list-checks" class="w-3.5 h-3.5"></i>
+                                                </button>
+
                                                 <button onclick="openEditTaskModal(<?= htmlspecialchars(json_encode([
                                                     'id' => (int)$task['id'],
                                                     'title' => $task['title'],
@@ -775,6 +827,27 @@ for ($h = $startHour; $h <= $endHour; $h++) {
                                                 </button>
                                             </div>
                                         </div>
+
+                                        <!-- Subtaken panel (verborgen by default, uitklapbaar) -->
+                                        <div id="subtask-panel-<?= $task['id'] ?>" class="hidden border-t border-slate-100 dark:border-slate-800/60 px-4 pb-3 pt-2.5 space-y-2 bg-slate-50/50 dark:bg-slate-950/20 rounded-b-2xl">
+                                            <!-- Subtaak lijst (dynamisch gevuld) -->
+                                            <div id="subtask-list-<?= $task['id'] ?>" class="space-y-1.5"></div>
+                                            <!-- Nieuw subtaak invoer -->
+                                            <div class="flex items-center space-x-2 mt-1.5">
+                                                <input
+                                                    type="text"
+                                                    id="subtask-input-<?= $task['id'] ?>"
+                                                    placeholder="Subtaak toevoegen…"
+                                                    class="flex-1 bg-white dark:bg-[#111624] border border-slate-200 dark:border-slate-800 rounded-xl px-3 py-1.5 text-xs text-slate-900 dark:text-white placeholder-slate-400 focus:outline-none focus:ring-1 focus:ring-indigo-500"
+                                                    onkeydown="if(event.key==='Enter'){addSubtask(<?= $task['id'] ?>);}"
+                                                >
+                                                <button onclick="addSubtask(<?= $task['id'] ?>)" class="flex items-center space-x-1 px-2.5 py-1.5 bg-indigo-600 hover:bg-indigo-500 text-white text-[10px] font-bold rounded-xl transition cursor-pointer">
+                                                    <i data-lucide="plus" class="w-3 h-3"></i>
+                                                    <span>Toevoegen</span>
+                                                </button>
+                                            </div>
+                                        </div>
+                                    </div>
                                 <?php endforeach; ?>
                             <?php endif; ?>
                         </div>
@@ -910,7 +983,67 @@ for ($h = $startHour; $h <= $endHour; $h++) {
                             </span>
                         </div>
 
-                        <!-- 4. De urentijdlijn rijen -->
+                        <!-- 4. Capaciteitsbar: Geplande minuten vs. werkdagcapaciteit -->
+                        <?php
+                            $workdayCapacityMinutes = max(1, ($endHour - $startHour) * 60);
+                            $lunchMinutes = 0;
+                            if (!empty($lunchStart) && !empty($lunchEnd)) {
+                                $lunchMinutes = (int)((strtotime("2000-01-01 {$lunchEnd}") - strtotime("2000-01-01 {$lunchStart}")) / 60);
+                            }
+                            $effectiveCapacity = max(1, $workdayCapacityMinutes - $lunchMinutes);
+                            $meetingMinutes = 0;
+                            foreach ($displayedOutlookEvents as $ev) {
+                                if (!empty($ev['start']) && !empty($ev['end'])) {
+                                    $meetingMinutes += max(0, (int)((strtotime("2000-01-01 {$ev['end']}") - strtotime("2000-01-01 {$ev['start']}")) / 60));
+                                }
+                            }
+                            $usedMinutes = $totalPlannedMinutes + $meetingMinutes;
+                            $capPercent = min(100, round(($usedMinutes / $effectiveCapacity) * 100));
+                            $taskOnlyPercent = min(100, round(($totalPlannedMinutes / $effectiveCapacity) * 100));
+                            $meetingPercent = min(100 - $taskOnlyPercent, round(($meetingMinutes / $effectiveCapacity) * 100));
+                            $capColor = $capPercent > 100 ? 'bg-rose-500' : ($capPercent >= 80 ? 'bg-amber-500' : 'bg-indigo-500');
+                            $capLabel = $capPercent > 100 ? 'Overbelast' : ($capPercent >= 80 ? 'Bijna vol' : 'Goed ingepland');
+                            $capLabelColor = $capPercent > 100 ? 'text-rose-600 dark:text-rose-400' : ($capPercent >= 80 ? 'text-amber-600 dark:text-amber-400' : 'text-indigo-600 dark:text-indigo-400');
+                            $freeMinutes = max(0, $effectiveCapacity - $usedMinutes);
+                            $freeH = intdiv($freeMinutes, 60);
+                            $freeM = $freeMinutes % 60;
+                            $freeLabel = $freeH > 0 ? "{$freeH}u " : '';
+                            $freeLabel .= $freeM > 0 ? "{$freeM}m" : '';
+                            $freeLabel = $freeLabel ?: '0m';
+                        ?>
+                        <div class="space-y-1.5">
+                            <div class="flex items-center justify-between text-[10px]">
+                                <div class="flex items-center space-x-2">
+                                    <span class="font-bold text-slate-600 dark:text-slate-400 uppercase tracking-wider">Dagcapaciteit</span>
+                                    <span class="font-mono font-black <?= $capLabelColor ?>"><?= $capPercent ?>% · <?= $capLabel ?></span>
+                                </div>
+                                <div class="flex items-center space-x-3 font-mono text-slate-500 dark:text-slate-400">
+                                    <?php if ($meetingMinutes > 0): ?>
+                                        <span class="flex items-center space-x-1">
+                                            <span class="w-2 h-2 rounded-sm bg-sky-400 dark:bg-sky-500 inline-block"></span>
+                                            <span><?= $meetingMinutes ?>m meetings</span>
+                                        </span>
+                                    <?php endif; ?>
+                                    <?php if ($totalPlannedMinutes > 0): ?>
+                                        <span class="flex items-center space-x-1">
+                                            <span class="w-2 h-2 rounded-sm bg-indigo-500 inline-block"></span>
+                                            <span><?= $totalPlannedMinutes ?>m taken</span>
+                                        </span>
+                                    <?php endif; ?>
+                                    <span class="text-emerald-600 dark:text-emerald-400 font-semibold"><?= $freeLabel ?> vrij</span>
+                                </div>
+                            </div>
+                            <div class="h-2.5 w-full bg-slate-100 dark:bg-slate-900/60 rounded-full overflow-hidden flex">
+                                <?php if ($meetingPercent > 0): ?>
+                                    <div class="h-full bg-sky-400 dark:bg-sky-500 transition-all duration-500 rounded-l-full" style="width: <?= $meetingPercent ?>%"></div>
+                                <?php endif; ?>
+                                <?php if ($taskOnlyPercent > 0): ?>
+                                    <div class="h-full <?= $capColor ?> transition-all duration-500 <?= $meetingPercent === 0 ? 'rounded-l-full' : '' ?> <?= ($meetingPercent + $taskOnlyPercent) >= 100 ? 'rounded-r-full' : '' ?>" style="width: <?= $taskOnlyPercent ?>%"></div>
+                                <?php endif; ?>
+                            </div>
+                        </div>
+
+                        <!-- 5. De urentijdlijn rijen -->
                         <div class="space-y-2.5">
                             <?php foreach ($hours as $hour): 
                                 $hourInt = (int)explode(':', $hour)[0];
@@ -1794,6 +1927,83 @@ if ($isAjaxRequest) {
 let focizWidgets = <?= json_encode(array_values($userWidgetLayout), JSON_UNESCAPED_UNICODE) ?>;
 const defaultWidgetLayout = <?= json_encode(array_values($availableWidgets), JSON_UNESCAPED_UNICODE) ?>;
 
+// --- AI Dagbriefing (laden bij pagina-open, alleen voor vandaag) ---
+<?php if ($isTodaySelected): ?>
+const _aiBriefingDate = '<?= $selectedDate ?>';
+let _aiBriefingLoaded = false;
+
+async function loadDailyBriefing() {
+    if (_aiBriefingLoaded) return;
+    const banner = document.getElementById('aiBriefingBanner');
+    if (!banner) return;
+
+    // Toon banner met skeleton
+    banner.classList.remove('hidden');
+
+    try {
+        const resp = await fetch('/api/ai.php?action=daily_briefing', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ date: _aiBriefingDate })
+        });
+        const data = await resp.json();
+
+        if (!data.success || data.error) {
+            // Geen AI key of fout: banner verbergen, stil falen
+            banner.classList.add('hidden');
+            return;
+        }
+
+        // Vul content
+        document.getElementById('aiBriefingGreeting').textContent = data.greeting || '';
+
+        const focusEl = document.getElementById('aiBriefingFocusTask');
+        const focusTextEl = document.getElementById('aiBriefingFocusText');
+        if (data.focus_task) {
+            focusTextEl.textContent = data.focus_task;
+            focusEl.classList.remove('hidden');
+            focusEl.style.display = 'flex';
+        }
+
+        const tipEl = document.getElementById('aiBriefingTip');
+        const tipTextEl = document.getElementById('aiBriefingTipText');
+        if (data.tip) {
+            tipTextEl.textContent = data.tip;
+            tipEl.classList.remove('hidden');
+            tipEl.style.display = 'flex';
+        }
+
+        if (data.warnings && data.warnings.length > 0) {
+            const warnContainer = document.getElementById('aiBriefingWarnings');
+            warnContainer.innerHTML = data.warnings.map(w =>
+                `<div class="flex items-center space-x-1.5 text-[11px] text-amber-700 dark:text-amber-400 bg-amber-50 dark:bg-amber-950/30 border border-amber-200 dark:border-amber-800/50 rounded-lg px-2.5 py-1">
+                    <i data-lucide="alert-triangle" class="w-3 h-3 flex-shrink-0"></i>
+                    <span>${w}</span>
+                </div>`
+            ).join('');
+            warnContainer.classList.remove('hidden');
+        }
+
+        // Wissel skeleton ↔ content
+        document.getElementById('aiBriefingLoading').classList.add('hidden');
+        document.getElementById('aiBriefingContent').classList.remove('hidden');
+
+        _aiBriefingLoaded = true;
+        if (typeof lucide !== 'undefined') lucide.createIcons();
+
+    } catch (err) {
+        // Netwerk- of serverfout: banner verbergen
+        banner.classList.add('hidden');
+    }
+}
+
+// Laad de briefing 1,5 seconden na paginalading (niet blokkeren)
+window.addEventListener('DOMContentLoaded', () => {
+    setTimeout(loadDailyBriefing, 1500);
+});
+<?php endif; ?>
+
+
 function openWidgetManagerModal() {
     renderWidgetManagerList();
     const modal = document.getElementById('widgetManagerModal');
@@ -3381,6 +3591,155 @@ async function deleteTask(taskId) {
     switchPlannerDate(activePlannerDate, null, false);
 }
 
+// --- V2.0: Subtaken & Checklists ---
+const _subtaskCache = {}; // task_id -> subtasks array
+
+async function toggleSubtaskPanel(taskId) {
+    const panel = document.getElementById(`subtask-panel-${taskId}`);
+    if (!panel) return;
+
+    const isHidden = panel.classList.contains('hidden');
+    if (isHidden) {
+        panel.classList.remove('hidden');
+        // Laad subtaken als nog niet geladen
+        if (!_subtaskCache[taskId]) {
+            await loadSubtasks(taskId);
+        } else {
+            renderSubtasks(taskId);
+        }
+        // Focus invoerveld
+        const inp = document.getElementById(`subtask-input-${taskId}`);
+        if (inp) setTimeout(() => inp.focus(), 50);
+    } else {
+        panel.classList.add('hidden');
+    }
+
+    if (typeof lucide !== 'undefined') lucide.createIcons();
+}
+
+async function loadSubtasks(taskId) {
+    try {
+        const resp = await fetch(`/api/planner.php?action=get_subtasks&task_id=${taskId}`);
+        const data = await resp.json();
+        if (data.success) {
+            _subtaskCache[taskId] = data.subtasks || [];
+            renderSubtasks(taskId);
+        }
+    } catch (e) {
+        console.error('Subtaken laden mislukt:', e);
+    }
+}
+
+function renderSubtasks(taskId) {
+    const list = document.getElementById(`subtask-list-${taskId}`);
+    if (!list) return;
+
+    const subtasks = _subtaskCache[taskId] || [];
+    if (subtasks.length === 0) {
+        list.innerHTML = '<p class="text-[11px] text-slate-400 italic">Nog geen subtaken. Voeg hieronder toe.</p>';
+        return;
+    }
+
+    const doneCount  = subtasks.filter(s => s.is_completed == 1).length;
+    const totalCount = subtasks.length;
+
+    list.innerHTML = `
+        <div class="flex items-center justify-between mb-1">
+            <span class="text-[10px] font-bold text-slate-500 dark:text-slate-400">${doneCount}/${totalCount} afgerond</span>
+            <div class="flex-1 mx-2 h-1 bg-slate-200 dark:bg-slate-800 rounded-full overflow-hidden">
+                <div class="h-full bg-indigo-500 transition-all duration-300" style="width: ${totalCount > 0 ? Math.round((doneCount/totalCount)*100) : 0}%"></div>
+            </div>
+        </div>
+        ${subtasks.map(s => `
+            <div class="flex items-center space-x-2 group/sub py-1" id="subtask-item-${s.id}">
+                <button onclick="toggleSubtask(${s.id}, ${s.is_completed ? 0 : 1}, ${taskId})"
+                    class="w-4 h-4 rounded border flex items-center justify-center flex-shrink-0 transition ${s.is_completed ? 'bg-indigo-600 border-indigo-600 text-white' : 'border-slate-300 dark:border-slate-700 hover:border-indigo-500 bg-white dark:bg-slate-900'}">
+                    ${s.is_completed ? '<svg xmlns="http://www.w3.org/2000/svg" class="w-2.5 h-2.5 stroke-[3]" viewBox="0 0 24 24" fill="none" stroke="currentColor"><polyline points="20 6 9 17 4 12"/></svg>' : ''}
+                </button>
+                <span class="text-xs flex-1 ${s.is_completed ? 'line-through text-slate-400 dark:text-slate-500' : 'text-slate-700 dark:text-slate-300'}">${escapeHtml(s.title)}</span>
+                <button onclick="deleteSubtask(${s.id}, ${taskId})"
+                    class="p-0.5 text-slate-300 hover:text-red-500 dark:text-slate-700 dark:hover:text-red-400 opacity-0 group-hover/sub:opacity-100 transition cursor-pointer rounded">
+                    <svg xmlns="http://www.w3.org/2000/svg" class="w-3 h-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="3 6 5 6 21 6"/><path d="M19 6l-1 14H6L5 6"/><path d="M10 11v6"/><path d="M14 11v6"/><path d="M9 6V4h6v2"/></svg>
+                </button>
+            </div>
+        `).join('')}
+    `;
+}
+
+async function addSubtask(taskId) {
+    const inp = document.getElementById(`subtask-input-${taskId}`);
+    if (!inp) return;
+    const title = inp.value.trim();
+    if (!title) return;
+
+    inp.disabled = true;
+    try {
+        const resp = await fetch('/api/planner.php?action=add_subtask', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ task_id: taskId, title })
+        });
+        const data = await resp.json();
+        if (data.success && data.subtask) {
+            if (!_subtaskCache[taskId]) _subtaskCache[taskId] = [];
+            _subtaskCache[taskId].push(data.subtask);
+            renderSubtasks(taskId);
+            inp.value = '';
+        } else {
+            alert(data.error || 'Kan subtaak niet toevoegen');
+        }
+    } catch (e) {
+        alert('Netwerkfout bij toevoegen subtaak');
+    } finally {
+        inp.disabled = false;
+        inp.focus();
+    }
+}
+
+async function toggleSubtask(subtaskId, newState, taskId) {
+    try {
+        await fetch('/api/planner.php?action=toggle_subtask', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ subtask_id: subtaskId, is_completed: newState })
+        });
+        // Update cache
+        if (_subtaskCache[taskId]) {
+            const sub = _subtaskCache[taskId].find(s => s.id == subtaskId);
+            if (sub) sub.is_completed = newState;
+        }
+        renderSubtasks(taskId);
+    } catch (e) {
+        console.error('Subtaak toggle mislukt:', e);
+    }
+}
+
+async function deleteSubtask(subtaskId, taskId) {
+    try {
+        await fetch('/api/planner.php?action=delete_subtask', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ subtask_id: subtaskId })
+        });
+        if (_subtaskCache[taskId]) {
+            _subtaskCache[taskId] = _subtaskCache[taskId].filter(s => s.id != subtaskId);
+        }
+        renderSubtasks(taskId);
+    } catch (e) {
+        console.error('Subtaak verwijderen mislukt:', e);
+    }
+}
+
+// Helper: XSS-safe escaping voor subtaak titels in JS
+function escapeHtml(str) {
+    return String(str)
+        .replace(/&/g, '&amp;')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;')
+        .replace(/"/g, '&quot;')
+        .replace(/'/g, '&#039;');
+}
+
 // --- AI Co-Pilot Slimme Dagplanning (Release v1.5) ---
 async function aiSmartSchedule(btn) {
     if (!confirm('Wil je AI Co-Pilot jouw openstaande taken voor deze dag slim laten inplannen rondom je Outlook meetings en lunch?')) return;