Fix Telegram bot responses: replace file_get_contents with Http client

apiCall() and downloadTelegramFile() were using file_get_contents() for
outgoing requests to api.telegram.org, which fails on restricted servers.
Now use Http:: (Guzzle) consistently, matching the rest of the project.

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

app/Services/TelegramBotService.php

@@ -1108,18 +1108,15 @@ class TelegramBotService
             return false;
         }
 
-        $url = "https://api.telegram.org/bot{$token}/{$method}";
-        $ctx = stream_context_create([
-            'http' => [
-                'method'  => 'POST',
-                'header'  => "Content-Type: application/json\r\n",
-                'content' => json_encode($data),
-                'timeout' => 10,
-            ],
-        ]);
+        try {
+            $response = Http::timeout(10)
+                ->post("https://api.telegram.org/bot{$token}/{$method}", $data);
 
-        $result = @file_get_contents($url, false, $ctx);
-        return $result !== false;
+            return $response->successful();
+        } catch (\Throwable $e) {
+            Log::warning("[TelegramBot] apiCall {$method} failed: " . $e->getMessage());
+            return false;
+        }
     }
 
     private function downloadTelegramFile(string $fileId): ?array
@@ -1129,29 +1126,31 @@ class TelegramBotService
             return null;
         }
 
-        $info = @file_get_contents("https://api.telegram.org/bot{$token}/getFile?file_id={$fileId}");
-        if (! $info) {
+        try {
+            $info     = Http::timeout(10)->get("https://api.telegram.org/bot{$token}/getFile", ['file_id' => $fileId]);
+            $filePath = $info->json('result.file_path');
+            if (! $filePath) {
+                return null;
+            }
+
+            $content = Http::timeout(30)->get("https://api.telegram.org/file/bot{$token}/{$filePath}")->body();
+            if (! $content) {
+                return null;
+            }
+
+            $ext  = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
+            $mime = match ($ext) {
+                'png'  => 'image/png',
+                'webp' => 'image/webp',
+                default => 'image/jpeg',
+            };
+
+            return ['content' => $content, 'mime' => $mime];
+
+        } catch (\Throwable $e) {
+            Log::warning('[TelegramBot] downloadTelegramFile failed: ' . $e->getMessage());
             return null;
         }
-
-        $filePath = json_decode($info, true)['result']['file_path'] ?? null;
-        if (! $filePath) {
-            return null;
-        }
-
-        $content = @file_get_contents("https://api.telegram.org/file/bot{$token}/{$filePath}");
-        if (! $content) {
-            return null;
-        }
-
-        $ext  = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
-        $mime = match ($ext) {
-            'png'  => 'image/png',
-            'webp' => 'image/webp',
-            default => 'image/jpeg',
-        };
-
-        return ['content' => $content, 'mime' => $mime];
     }
 
     // ─── Helpers ──────────────────────────────────────────────