feat: HA scene control via voice

- ha.php: GET scenes action returns live scene list from HA; POST scene_activate triggers by entity_id
- chat.php: ha_scene intent fetches all scenes live, fuzzy token-matches against message, calls scene.turn_on; falls back to listing available scenes if no match
- KB intents: 14 patterns covering good night/morning/goodbye/kitchen lights/ocean dawn/porch + generic activate/run/trigger/set scene

Scenes available: Good Night, Good Morning, Good Morning Work, Goodbye, Kitchen Lights On/Off, Front Porch Lights, Office Ocean Dawn, Master Bedroom

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/endpoints/chat.php

@@ -1647,6 +1647,57 @@ if (!$reply) {
     if ($matched && $matched['action'] === 'action') {
         switch ($matched['intent']) {
 
+            case 'ha_scene': {
+                // Fetch all HA scenes and fuzzy-match against the message
+                $haScenes = @json_decode(@file_get_contents(
+                    HA_URL . '/api/states',
+                    false,
+                    stream_context_create(['http' => ['timeout' => 5, 'header' => 'Authorization: Bearer ' . HA_TOKEN]])
+                ), true) ?? [];
+
+                $scenes = array_filter($haScenes, fn($s) => str_starts_with($s['entity_id'] ?? '', 'scene.'));
+                $msgLow = strtolower($message);
+
+                // Score each scene against the message
+                $best = null; $bestScore = 0;
+                foreach ($scenes as $s) {
+                    $name = strtolower($s['attributes']['friendly_name'] ?? '');
+                    $id   = strtolower(str_replace(['scene.', '_'], ['', ' '], $s['entity_id']));
+                    // Token overlap score
+                    $tokens = array_filter(explode(' ', "$name $id"));
+                    $score  = 0;
+                    foreach ($tokens as $tok) {
+                        if (strlen($tok) > 2 && str_contains($msgLow, $tok)) $score++;
+                    }
+                    // Bonus for exact phrase match
+                    if ($name && str_contains($msgLow, $name)) $score += 5;
+                    if ($score > $bestScore) { $bestScore = $score; $best = $s; }
+                }
+
+                if ($best && $bestScore >= 1) {
+                    $sceneName = $best['attributes']['friendly_name'] ?? $best['entity_id'];
+                    @file_get_contents(
+                        HA_URL . '/api/services/scene/turn_on',
+                        false,
+                        stream_context_create(['http' => [
+                            'method'  => 'POST',
+                            'header'  => "Authorization: Bearer " . HA_TOKEN . "
+Content-Type: application/json",
+                            'content' => json_encode(['entity_id' => $best['entity_id']]),
+                            'timeout' => 5,
+                        ]])
+                    );
+                    $reply  = "Activating {$sceneName}, {$userAddr}.";
+                } else {
+                    // List available scenes
+                    $names = array_map(fn($s) => $s['attributes']['friendly_name'] ?? $s['entity_id'], $scenes);
+                    $list  = implode(', ', array_values($names));
+                    $reply  = "I didn't catch which scene, {$userAddr}. Available scenes: {$list}.";
+                }
+                $source = 'intent:ha_scene';
+                break;
+            }
+
             case 'restart_agent':
                 // Extract target hostname from message
                 $msgLow = strtolower($message);

api/endpoints/ha.php

@@ -38,6 +38,34 @@ if (!$configured) {
     exit;
 }
 
+// Scene list
+if ($method === 'GET' && $action === 'scenes') {
+    $states = haRequest('/states') ?? [];
+    $scenes = [];
+    foreach ($states as $s) {
+        if (str_starts_with($s['entity_id'] ?? '', 'scene.')) {
+            $scenes[] = [
+                'entity_id' => $s['entity_id'],
+                'name'      => $s['attributes']['friendly_name'] ?? $s['entity_id'],
+            ];
+        }
+    }
+    echo json_encode(['scenes' => $scenes]);
+    exit;
+}
+
+// Scene activate
+if ($method === 'POST' && $action === 'scene_activate') {
+    $entity_id = $data['entity_id'] ?? '';
+    if ($entity_id && str_starts_with($entity_id, 'scene.')) {
+        $result = haRequest('/services/scene/turn_on', 'POST', ['entity_id' => $entity_id]);
+        echo json_encode(['success' => true, 'entity_id' => $entity_id]);
+    } else {
+        echo json_encode(['error' => 'Invalid scene entity_id']);
+    }
+    exit;
+}
+
 // Live service call (toggle device) — always direct to HA, never cached
 if ($method === 'POST' && $action === 'service') {
     $domain    = $data['domain']    ?? '';