docs: improve bug report template

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -5,12 +5,19 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to fill out this bug report!
+        Thanks for taking the time to fill out this bug report! Please ensure you have searched for existing issues before opening a new one.
+  - type: checkboxes
+    id: check-existing
+    attributes:
+      label: Search before opening
+      options:
+        - label: I have searched for existing issues and this is not a duplicate.
+          required: true
   - type: textarea
     id: what-happened
     attributes:
       label: What happened?
-      description: Also tell us, what did you expect to happen?
+      description: A clear and concise description of what the bug is and what you expected to happen.
       placeholder: Tell us what you see!
     validations:
       required: true
@@ -28,9 +35,15 @@ body:
   - type: textarea
     id: version
     attributes:
-      label: Evaliphy version
-      description: Which version of Evaliphy are you using?
-      placeholder: e.g. 1.0.0-beta.1
+      label: Environment Info
+      description: |
+        - Evaliphy version (e.g. 1.0.0)
+        - Node.js version (node -v)
+        - Operating System
+      placeholder: |
+        Evaliphy: 
+        Node: 
+        OS: 
     validations:
       required: true
   - type: textarea
@@ -39,3 +52,8 @@ body:
       label: Relevant log output
       description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks.
       render: shell
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Add any other context about the problem here.