Set up project scaffolding: GitHub Actions workflows, issue templates, changelog, contributing guidelines, MIT license, and README

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature
+about: Suggest an idea or enhancement
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+**Problem / motivation**
+What is this about? What are you missing right now?
+
+**Proposal**
+What should be added or changed?
+
+**Alternatives**
+Have you considered other solutions?
+
+**Additional context**
+Screenshots, examples, links—feel free to attach.