Initial shared URL engine package

Extract URL pattern management, routing, entity lifecycle handling,
and schema installation from mprfriendlyurl into a shared Composer
package. Both mprfriendlyurl and mprseorevolution will consume this
via configurable table prefix and pattern storage abstraction.

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

composer.json

@@ -0,0 +1,27 @@
+{
+    "name": "myprestarocks/prestashop-url",
+    "description": "Shared URL engine for PrestaShop modules - pattern management, routing, entity lifecycle",
+    "keywords": ["prestashop", "url", "seo", "routing", "rewrite"],
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "mypresta.rocks",
+            "email": "info@mypresta.rocks"
+        }
+    ],
+    "require": {
+        "php": ">=7.1.3"
+    },
+    "autoload": {
+        "psr-4": {
+            "MyPrestaRocks\\Url\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-main": "1.0.x-dev"
+        }
+    },
+    "minimum-stability": "stable"
+}