fix: 知识点讲解功能添加markdown插件

composer.json

@@ -14,6 +14,7 @@
         "intervention/image": "^3.11",
         "laravel/framework": "^12.0",
         "laravel/tinker": "^2.10.1",
+        "michelf/php-markdown": "^2.0",
         "mpdf/mpdf": "*",
         "phpoffice/phpspreadsheet": "^5.3",
         "predis/predis": "*",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "b95778c0d797fea3ef62efc4315fce10",
+    "content-hash": "e93c8edd605a9b845e6f00904e3b00d3",
     "packages": [
         {
             "name": "adbario/php-dot-notation",
@@ -4623,6 +4623,62 @@
             },
             "time": "2025-07-25T09:04:22+00:00"
         },
+        {
+            "name": "michelf/php-markdown",
+            "version": "2.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/michelf/php-markdown.git",
+                "reference": "eb176f173fbac58a045aff78e55f833264b34e71"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/michelf/php-markdown/zipball/eb176f173fbac58a045aff78e55f833264b34e71",
+                "reference": "eb176f173fbac58a045aff78e55f833264b34e71",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.4"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^3.0",
+                "phpstan/phpstan": ">=1.0",
+                "phpstan/phpstan-phpunit": ">=1.0",
+                "phpunit/phpunit": "^9.5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Michelf\\": "Michelf/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Michel Fortin",
+                    "email": "michel.fortin@michelf.ca",
+                    "homepage": "https://michelf.ca/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "John Gruber",
+                    "homepage": "https://daringfireball.net/"
+                }
+            ],
+            "description": "PHP Markdown",
+            "homepage": "https://michelf.ca/projects/php-markdown/",
+            "keywords": [
+                "markdown"
+            ],
+            "support": {
+                "issues": "https://github.com/michelf/php-markdown/issues",
+                "source": "https://github.com/michelf/php-markdown/tree/2.0.0"
+            },
+            "time": "2022-09-26T12:21:08+00:00"
+        },
         {
             "name": "monolog/monolog",
             "version": "3.9.0",