diff --git a/api/_debug_health.php b/api/_debug_health.php
new file mode 100644
index 0000000..1d18475
--- /dev/null
+++ b/api/_debug_health.php
@@ -0,0 +1,4 @@
+<?php
+if (php_sapi_name() !== 'cli') header('Content-Type: application/json; charset=utf-8');
+if (function_exists('writeLog')) writeLog('DEBUG','Health check called', ['uri' => $_SERVER['REQUEST_URI'] ?? '']);
+echo json_encode(['ok'=>true,'uri'=>$_SERVER['REQUEST_URI'] ?? '']);
diff --git a/api/delete_template.php b/api/delete_template.php
index ff15dcb..4bcee7e 100644
--- a/api/delete_template.php
+++ b/api/delete_template.php
@@ -1,8 +1,32 @@
 <?php
+file_put_contents(sys_get_temp_dir() . '/delete_template_entry.log', date('c') . " request=" . ($_SERVER['REQUEST_URI'] ?? 'cli') . "\n", FILE_APPEND);
 require_once __DIR__ . '/../config/config_enhanced.php';
-require_once __DIR__ . '/../config/config.php';
+file_put_contents(sys_get_temp_dir() . '/delete_template_entry.log', date('c') . " included=config_enhanced\n", FILE_APPEND);
+// Avoid including legacy config.php to prevent duplicate function declarations
+if (!function_exists('getConfigFromDB') && file_exists(__DIR__ . '/../config/config.php')) {
+    require_once __DIR__ . '/../config/config.php';
+    file_put_contents(sys_get_temp_dir() . '/delete_template_entry.log', date('c') . " included=config_php_fallback\n", FILE_APPEND);
+}
 
-header('Content-Type: application/json; charset=utf-8');
+if (php_sapi_name() !== 'cli') header('Content-Type: application/json; charset=utf-8');
+
+// Global exception/shutdown handlers to capture fatal errors during HTTP execution
+set_exception_handler(function($e){
+    if (function_exists('writeLog')) writeLog('ERROR', 'Unhandled exception in delete_template.php', ['message'=>$e->getMessage(), 'trace'=>$e->getTraceAsString()]);
+    if (php_sapi_name() !== 'cli') http_response_code(500);
+    echo json_encode(['success'=>false,'error'=>$e->getMessage()]);
+    exit;
+});
+register_shutdown_function(function(){
+    $err = error_get_last();
+    if ($err) {
+        if (function_exists('writeLog')) writeLog('ERROR', 'Shutdown error in delete_template.php', ['error' => $err]);
+        if (php_sapi_name() !== 'cli') {
+            http_response_code(500);
+            echo json_encode(['success'=>false,'error'=>$err['message']]);
+        }
+    }
+});
 
 // Bypass authentication when debug=true is provided in query string
 $debugMode = isset($_GET['debug']) && $_GET['debug'] === 'true';
diff --git a/api/save_survey_response.php b/api/save_survey_response.php
new file mode 100644
index 0000000..5c2182a
--- /dev/null
+++ b/api/save_survey_response.php
@@ -0,0 +1,148 @@
+<?php
+require_once __DIR__ . '/../config/config.php';
+if (php_sapi_name() !== 'cli') header('Content-Type: application/json; charset=utf-8');
+
+$input = json_decode(file_get_contents('php://input'), true) ?: $_POST;
+
+// minimal auth or debug
+$debug = isset($_GET['debug']) && $_GET['debug'] === 'true';
+if (!$debug && function_exists('requireAuthentication')) requireAuthentication();
+
+$phone = $input['phone'] ?? ($input['phone_number'] ?? null);
+$user_id = isset($input['user_id']) ? intval($input['user_id']) : null;
+$raw = $input['text'] ?? $input['raw'] ?? null;
+
+if (!$raw || (!$phone && !$user_id)) {
+    http_response_code(400);
+    echo json_encode(['success' => false, 'error' => 'phone/user_id and text are required']);
+    exit;
+}
+
+// Normalize encoding - try to ensure UTF-8
+if (!function_exists('normalize_text')) {
+function normalize_text($s) {
+    if (empty($s)) return $s;
+    // If valid UTF-8, attempt to repair common mojibake (Ã, Â) before returning
+    if (mb_check_encoding($s, 'UTF-8')) {
+        if (preg_match('/Ã|Â/', $s)) {
+            $step = @iconv('UTF-8', 'ISO-8859-1//TRANSLIT', $s);
+            if ($step) {
+                $step2 = @iconv('ISO-8859-1', 'UTF-8//TRANSLIT', $step);
+                if ($step2 && mb_check_encoding($step2, 'UTF-8')) return $step2;
+            }
+        }
+        return $s;
+    }
+    // Try latin1 -> utf8
+    $try = @iconv('ISO-8859-1', 'UTF-8//TRANSLIT', $s);
+    if ($try && mb_check_encoding($try, 'UTF-8')) return $try;
+    // Try CP1252
+    $try2 = @iconv('CP1252', 'UTF-8//TRANSLIT', $s);
+    if ($try2 && mb_check_encoding($try2, 'UTF-8')) return $try2;
+    // Fallback: utf8_decode then re-encode
+    $auto = mb_convert_encoding($s, 'UTF-8', 'auto');
+    // Try to repair common double-encoding mojibake (look for sequences like à or Â)
+    if (preg_match('/[\xC2\xC3][\x80-\xBF]/', $s) || preg_match('/Ã|Â/', $s)) {
+        $step = @iconv('UTF-8', 'ISO-8859-1//TRANSLIT', $s);
+        if ($step) {
+            $step2 = @iconv('ISO-8859-1', 'UTF-8//TRANSLIT', $step);
+            if ($step2 && mb_check_encoding($step2, 'UTF-8')) return $step2;
+        }
+    }
+    return $auto;
+}
+}
+
+$rawClean = normalize_text($raw);
+
+// Parse key: value lines
+$lines = preg_split('/\r?\n/', $rawClean);
+$parsed = [];
+foreach ($lines as $line) {
+    $line = trim($line);
+    if ($line === '') continue;
+    // Try separator ':' or '-'
+    if (strpos($line, ':') !== false) {
+        list($k,$v) = explode(':', $line, 2);
+    } elseif (strpos($line, '?') !== false && preg_match('/^\s*([^\?]+\?)\s*(.+)$/', $line, $m)) {
+        $k = $m[1]; $v = $m[2];
+    } else {
+        // last resort split by whitespace before last token
+        $parts = preg_split('/\s{2,}/', $line);
+        if (count($parts) === 2) { $k = $parts[0]; $v = $parts[1]; } else { continue; }
+    }
+    $k = trim($k);
+    $v = trim($v);
+    // normalize key and value encoding
+    $k = normalize_text($k);
+    $v = normalize_text($v);
+    $parsed[$k] = $v;
+}
+
+// Map expected questions (in Spanish) to fields
+if (!function_exists('yesno_to_bool')) {
+function yesno_to_bool($s) {
+    $s = mb_strtolower($s);
+    // Normalize common utf8 artifacts
+    $s = str_replace(['\u00a0','\xa0'], ' ', $s);
+    $s = trim($s);
+    if (in_array($s, ['si','sí','s','yes','y','true','1'])) return 1;
+    if (in_array($s, ['no','n','false','0'])) return 0;
+    return null;
+}
+}
+
+$qeasy = null; $qhuman = null; $rating = null; $comment = null;
+// try keys in parsed
+foreach ($parsed as $k => $v) {
+    $kl = mb_strtolower($k);
+    if (strpos($kl, 'fue') !== false && strpos($kl, 'facil') !== false) {
+        $qeasy = yesno_to_bool($v);
+    } elseif (strpos($kl, 'asesor') !== false || strpos($kl, 'humano') !== false) {
+        $qhuman = yesno_to_bool($v);
+    } elseif (strpos($kl, 'calificaci') !== false || strpos($kl, 'calificacion') !== false || strpos($kl, 'calificaci') !== false) {
+        $rating = intval(preg_replace('/[^0-9]/','',$v));
+    } elseif (strpos($kl, 'coment') !== false) {
+        $comment = $v;
+    }
+}
+
+// fallback: try regex in raw
+if ($qeasy === null) {
+    if (preg_match('/fue\s+([^,:\?]+)\s+interact/i', $rawClean, $m)) { $qeasy = yesno_to_bool($m[1]); }
+}
+if ($qhuman === null) {
+    if (preg_match('/asesor.*:\s*([^,\n]+)/i', $rawClean, $m)) { $qhuman = yesno_to_bool($m[1]); }
+}
+if ($rating === null) {
+    if (preg_match('/calificaci[oó]n[:\s]*([0-9]+)/i', $rawClean, $m)) { $rating = intval($m[1]); }
+}
+if ($comment === null) {
+    if (preg_match('/comentario[:\s]*(.+)$/i', $rawClean, $m)) { $comment = trim($m[1]); }
+}
+
+// Insert into DB
+try {
+    $db = Database::getInstance();
+    $phoneNormalized = $phone ? preg_replace('/[^0-9+]/','',$phone) : null;
+    $now = date('Y-m-d H:i:s');
+    $data = [
+        'user_id' => $user_id,
+        'phone_number' => $phoneNormalized,
+        'q_easy_interact' => $qeasy,
+        'q_human_resolved' => $qhuman,
+        'rating' => $rating,
+        'comment' => $comment,
+        'raw_text' => $rawClean,
+        'created_at' => $now
+    ];
+
+    $id = $db->insert('survey_responses', $data);
+
+    if (function_exists('writeLog')) writeLog('INFO', 'Survey response saved', ['id'=>$id, 'phone'=>$phoneNormalized, 'parsed'=>$parsed]);
+
+    echo json_encode(['success'=>true,'id'=>$id,'parsed'=>$parsed]);
+} catch (Exception $e) {
+    http_response_code(500);
+    echo json_encode(['success'=>false,'error'=>$e->getMessage()]);
+}
diff --git a/config/config.php b/config/config.php
index ee778a9..708c319 100644
--- a/config/config.php
+++ b/config/config.php
@@ -19,6 +19,7 @@ define('DB_CHARSET', 'utf8mb4');
 define('ADMIN_PASSWORD', '$2y$10$IXCY8Sm1xFkfhC6Y67Ahn.QLHxE.sjWfmTEOKFZdCN2a9s9YLVuGW'); // password123
 
 // Función para cargar archivo .env
+if (!function_exists('loadEnvFile')) {
 function loadEnvFile($path) {
     if (!file_exists($path)) {
         return false;
@@ -41,22 +42,27 @@ function loadEnvFile($path) {
     }
     return true;
 }
+} 
 
 // Cargar .env si existe
 loadEnvFile(__DIR__ . '/../.env');
 
 // Función helper para obtener variables de entorno
+if (!function_exists('env')) {
 function env($key, $default = null) {
     return $_ENV[$key] ?? getenv($key) ?: $default;
 }
+} 
 
 // Incluir clase Database
 require_once __DIR__ . '/../classes/Database.php';
 
 // Función para verificar si la instalación está completada
+if (!function_exists('isInstallationCompleted')) {
 function isInstallationCompleted() {
     return file_exists(dirname(__DIR__) . '/.installation_completed');
 }
+} 
 
 // Función para obtener configuración desde base de datos
 function getConfigFromDB($key, $default = null) {
@@ -516,11 +522,14 @@ function getAdminUsers() {
 }
 
 // Función para verificar login
+if (!function_exists('isUserLoggedIn')) {
 function isUserLoggedIn() {
     return isset($_SESSION['admin_logged_in']) && $_SESSION['admin_logged_in'] === true;
 }
+} 
 
 // Función para verificar intentos de login
+if (!function_exists('checkLoginAttempts')) {
 function checkLoginAttempts($ip) {
     $attemptsFile = dirname(__DIR__) . '/.login_attempts.json';
     
@@ -544,8 +553,10 @@ function checkLoginAttempts($ip) {
     
     return $ipData['attempts'] < MAX_LOGIN_ATTEMPTS;
 }
+} 
 
 // Función para registrar intento de login fallido
+if (!function_exists('recordFailedLogin')) {
 function recordFailedLogin($ip) {
     $attemptsFile = dirname(__DIR__) . '/.login_attempts.json';
     
@@ -566,8 +577,10 @@ function recordFailedLogin($ip) {
     
     file_put_contents($attemptsFile, json_encode($attempts));
 }
+}
 
 // Función para limpiar intentos de login exitoso
+if (!function_exists('clearLoginAttempts')) {
 function clearLoginAttempts($ip) {
     $attemptsFile = dirname(__DIR__) . '/.login_attempts.json';
     
@@ -577,6 +590,7 @@ function clearLoginAttempts($ip) {
         file_put_contents($attemptsFile, json_encode($attempts));
     }
 }
+}
 
 // Autoloader
 spl_autoload_register(function ($class) {
@@ -782,6 +796,7 @@ function validateWhatsAppConfig() {
 }
 
 // Función para logging centralizado
+if (!function_exists('writeLog')) {
 function writeLog($level, $message, $context = []) {
     if (!ENABLE_LOGGING) return;
     
@@ -803,6 +818,7 @@ function writeLog($level, $message, $context = []) {
     
     file_put_contents($logDir . '/system.log', $logMessage, FILE_APPEND | LOCK_EX);
 }
+} 
 
 // Crear directorios necesarios
 $requiredDirs = [
diff --git a/scripts/find_template.php b/scripts/find_template.php
new file mode 100644
index 0000000..77cb61e
--- /dev/null
+++ b/scripts/find_template.php
@@ -0,0 +1,6 @@
+<?php
+require_once __DIR__ . '/../config/config.php';
+$db = Database::getInstance();
+$t = $db->fetch('SELECT id, name FROM message_templates LIMIT 1');
+if (!$t) { echo "No templates found\n"; exit(1); }
+print_r($t);