CMS 2.0 - Theme engine, logging, admin improvements

Major changes:
- New ThemeManager with Twig templating and SCSS compilation
- Dynamic themes system (themes/default, themes/demo)
- LogManager with SQLite storage and syslog forwarding
- RequestLogger with static helper methods
- Admin UI overhaul (Bootstrap 5, dark mode)
- Admin config page with logging and theme settings
- Admin logs page with filters and search
- Removed legacy Mustache templates
- Removed test plugin and theme
- Composer dependencies: Twig, scssphp, CommonMark, MaxMind GeoIP

vendor/composer/ca-bundle/composer.json

@@ -0,0 +1,54 @@
+{
+    "name": "composer/ca-bundle",
+    "description": "Lets you find a path to the system CA bundle, and includes a fallback to the Mozilla CA bundle.",
+    "type": "library",
+    "license": "MIT",
+    "keywords": [
+        "cabundle",
+        "cacert",
+        "certificate",
+        "ssl",
+        "tls"
+    ],
+    "authors": [
+        {
+            "name": "Jordi Boggiano",
+            "email": "j.boggiano@seld.be",
+            "homepage": "http://seld.be"
+        }
+    ],
+    "support": {
+        "irc": "irc://irc.freenode.org/composer",
+        "issues": "https://github.com/composer/ca-bundle/issues"
+    },
+    "require": {
+        "ext-openssl": "*",
+        "ext-pcre": "*",
+        "php": "^7.2 || ^8.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^8 || ^9",
+        "phpstan/phpstan": "^1.10",
+        "psr/log": "^1.0 || ^2.0 || ^3.0",
+        "symfony/process": "^4.0 || ^5.0 || ^6.0 || ^7.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Composer\\CaBundle\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Composer\\CaBundle\\": "tests"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-main": "1.x-dev"
+        }
+    },
+    "scripts": {
+        "test": "@php phpunit",
+        "phpstan": "@php phpstan analyse"
+    }
+}