docs: add .github/ISSUE_TEMPLATE/bug_report.md (closes PARITY doc gap)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,36 @@
+---
+name: Bug Report
+about: Report a bug in claw-code
+title: "[bug] "
+labels: bug
+assignees: ''
+---
+
+## Description
+
+<!-- What happened? -->
+
+## Steps to Reproduce
+
+1. 
+2. 
+3. 
+
+## Expected Behavior
+
+<!-- What should have happened? -->
+
+## Actual Behavior
+
+<!-- What actually happened? Include error messages, logs, screenshots -->
+
+## Environment
+
+- **claw-code version:** 
+- **OS:** 
+- **Provider/model:** 
+- **Rust version (if building from source):** 
+
+## Additional Context
+
+<!-- Related pinpoints, sessions, config, etc. -->