chore: rename package to core/php-framework

Aligns composer package name with forge repo path
(forge.lthn.ai/core/php-framework). Part of host-uk/* → core/* migration.

Co-Authored-By: Virgil <virgil@lethean.io>

composer.json

@@ -1,7 +1,14 @@
 {
-    "name": "host-uk/core",
+    "name": "core/php-framework",
     "description": "Modular monolith framework for Laravel - event-driven architecture with lazy module loading",
-    "keywords": ["laravel", "modular", "monolith", "framework", "events", "modules"],
+    "keywords": [
+        "laravel",
+        "modular",
+        "monolith",
+        "framework",
+        "events",
+        "modules"
+    ],
     "license": "EUPL-1.2",
     "authors": [
         {