chore: add feature request issue template

Author: TheStreamCode

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,16 @@
+---
+name: Feature request
+about: Suggest an improvement for the Kimi Code CLI launcher
+title: "[FEAT] "
+labels: enhancement
+assignees: ''
+---
+
+## Problem
+What problem does this solve?
+
+## Proposed Solution
+How you'd like it to work.
+
+## Alternatives Considered
+Other approaches you've thought about.