docs: Add bug report issue template

This template provides a structured format for bug reports including:
- Clear sections for bug description and reproduction steps
- Environment details collection
- Space for error messages and logs
- Guidelines for additional context

This follows the issue management rules defined in CLAUDE.md.

Author: shafiqahmeddev

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,51 @@
+---
+name: Bug Report
+about: Create a report to help us improve AIDAS
+title: '[BUG] '
+labels: 'bug, needs-triage'
+assignees: ''
+
+---
+
+## Bug Description
+A clear and concise description of what the bug is.
+
+## Steps to Reproduce
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Run command '....'
+4. See error
+
+## Expected Behavior
+A clear and concise description of what you expected to happen.
+
+## Actual Behavior
+A clear and concise description of what actually happens.
+
+## Environment
+Please complete the following information:
+- **OS**: [e.g., Ubuntu 20.04, Windows 10, macOS 12.0]
+- **Python Version**: [e.g., 3.9.5]
+- **AIDAS Version/Commit**: [e.g., v1.0.0 or commit hash]
+- **Dependencies**: 
+  ```
+  # Output of: pip freeze | grep -E "tensorflow|numpy|cryptography"
+  ```
+
+## Error Messages/Logs
+```
+# Paste any error messages or relevant log output here
+```
+
+## Screenshots
+If applicable, add screenshots to help explain your problem.
+
+## Additional Context
+Add any other context about the problem here. This might include:
+- Whether the issue is reproducible
+- Any workarounds you've found
+- Related issues or PRs
+
+## Possible Solution
+If you have ideas on how to fix the issue, please describe them here.