Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report a bug or unexpected behavior
+title: "[BUG]"
+labels: bug
+assignees: ''
+
+---
+
+## Quick Summary
+
+##  Environment & Tools
+- **PicoClaw Version:** (e.g., v0.1.2 or commit hash)
+- **Go Version:** (e.g., go 1.22)
+- **AI Model & Provider:** (e.g., GPT-4o via OpenAI / DeepSeek via SiliconFlow)
+- **Operating System:** (e.g., Ubuntu 22.04 / macOS / Android Termux)
+- **Channels:** (e.g., Discord, Telegram, Feishu, ...)
+
+## 📸 Steps to Reproduce
+1. 
+2. 
+3. 
+
+## ❌ Actual Behavior
+
+## ✅ Expected Behavior
+
+## 💬 Additional Context