feat: add issue and pull request templates with compliance workflow (#689)

* bug report

* feat: add pull request template for better contribution guidelines

* feat: add template compliance check for issues and pull requests

* drop review action

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Create a report to help us improve Graphiti
+title: '[BUG] '
+labels: bug
+assignees: ''
+---
+
+## Bug Description
+A clear and concise description of what the bug is.
+
+## Steps to Reproduce
+Provide a minimal code example that reproduces the issue:
+
+```python
+# Your code here
+```
+
+## Expected Behavior
+A clear and concise description of what you expected to happen.
+
+## Actual Behavior
+A clear and concise description of what actually happened.
+
+## Environment
+- **Graphiti Version**: [e.g. 0.15.1]
+- **Python Version**: [e.g. 3.11.5]
+- **Operating System**: [e.g. macOS 14.0, Ubuntu 22.04]
+- **Database Backend**: [e.g. Neo4j 5.26, FalkorDB 1.1.2]
+- **LLM Provider & Model**: [e.g. OpenAI gpt-4.1, Anthropic claude-4-sonnet, Google gemini-2.5-flash]
+
+## Installation Method
+- [ ] pip install
+- [ ] uv add
+- [ ] Development installation (git clone)
+
+## Error Messages/Traceback
+```
+Paste the full error message and traceback here
+```
+
+## Configuration
+```python
+# Relevant configuration or initialization code
+```
+
+## Additional Context
+- Does this happen consistently or intermittently?
+- Which component are you using? (core library, REST server, MCP server)
+- Any recent changes to your environment?
+- Related issues or similar problems you've encountered?
+
+## Possible Solution
+If you have ideas about what might be causing the issue or how to fix it, please share them here.

.github/pull_request_template.md

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+## Summary
+Brief description of the changes in this PR.
+
+## Type of Change
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Performance improvement
+- [ ] Documentation/Tests
+
+## Objective
+**For new features and performance improvements:** Clearly describe the objective and rationale for this change.
+
+## Testing
+- [ ] Unit tests added/updated
+- [ ] Integration tests added/updated
+- [ ] All existing tests pass
+
+## Breaking Changes
+- [ ] This PR contains breaking changes
+
+If this is a breaking change, describe:
+- What functionality is affected
+- Migration path for existing users
+
+## Checklist
+- [ ] Code follows project style guidelines (`make lint` passes)
+- [ ] Self-review completed
+- [ ] Documentation updated where necessary
+- [ ] No secrets or sensitive information committed
+
+## Related Issues
+Closes #[issue number]