feat: adds ServiceReview cog

Introduces functionality for users to submit independent service reviews, sent to a designated staff channel.

Includes metadata and initial structure files.

servicereview/info.json

@@ -0,0 +1,15 @@
+{
+  "author": [ "unstableCogs" ],
+  "install_msg": "Thank you for installing the Service Review cog!",
+  "name": "ServiceReview",
+  "short": "A command for users to leave a service review.",
+  "description": "Allows users to submit a service review at any time, independently of any ticket system. Submissions are sent to a designated channel for staff.",
+  "tags": [
+    "review",
+    "service",
+    "feedback",
+    "utility"
+  ],
+  "requirements": [ "rich" ],
+  "end_user_data_statement": "This cog persistently stores the user's ID and the content of their submitted review for record-keeping purposes."
+}