docs: add open source community files and link contributing guide

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Report a problem with InferNode
+title: ''
+labels: bug
+assignees: ''
+---
+
+## Description
+
+A clear description of the bug.
+
+## Steps to Reproduce
+
+1. 
+2. 
+3. 
+
+## Expected Behavior
+
+What you expected to happen.
+
+## Actual Behavior
+
+What actually happened. Include error messages or output if available.
+
+## Environment
+
+- **Platform**: (e.g., Linux x86-64, macOS ARM64, Windows x86-64)
+- **Build**: (e.g., `build-linux-amd64.sh`, pre-built macOS)
+- **JIT**: (enabled with `-c1`, or interpreter only `-c0`)
+- **Commit**: (output of `git rev-parse --short HEAD`)
+
+## Additional Context
+
+Any other information that might help diagnose the issue:
+- Relevant log output
+- Dis bytecode involved (`.dis` file names)
+- Whether this worked in a previous commit

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest a new feature or improvement
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+## Summary
+
+A brief description of the feature or improvement.
+
+## Motivation
+
+What problem does this solve? Why is it needed?
+
+## Proposed Approach
+
+How might this be implemented? (optional — even rough ideas are helpful)
+
+## Alternatives Considered
+
+Other approaches you've thought about and why they're less ideal.
+
+## Additional Context
+
+- Related issues or PRs
+- Links to relevant documentation or external resources
+- Which subsystem this affects (e.g., Dis VM, Veltro, Xenith, 9P, crypto)

.github/PULL_REQUEST_TEMPLATE.md

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+## Summary
+
+What does this PR do and why?
+
+## Changes
+
+- 
+
+## Testing
+
+How was this tested?
+
+- [ ] Tests pass (`/tests/runner.dis -v`)
+- [ ] New tests added (if applicable)
+- [ ] Tested on: (platform)
+
+## Checklist
+
+- [ ] Code follows the existing style of the file(s) modified
+- [ ] No `.dis` build artifacts committed from `appl/` or `tests/`
+- [ ] Documentation updated (if applicable)
+- [ ] No secrets, API keys, or credentials included

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+## Our Standards
+
+InferNode is an open source project that welcomes contributors of all
+backgrounds and experience levels. We are committed to providing a friendly,
+safe, and welcoming environment for everyone.
+
+We expect all participants to:
+
+- **Be respectful** — Disagreement is fine; personal attacks are not
+- **Be constructive** — Offer suggestions, not just criticism
+- **Be patient** — Remember that everyone was new once
+- **Be collaborative** — Work together toward shared goals
+- **Accept feedback gracefully** — Code review is about the code, not the person
+
+Unacceptable behavior includes personal attacks, trolling, publishing others'
+private information, and any conduct that would reasonably be considered
+inappropriate in a professional setting.
+
+## Scope
+
+This code of conduct applies to all project spaces — GitHub issues, pull
+requests, discussions, and any other channels used for project communication.
+
+## Enforcement
+
+Instances of unacceptable behavior may be reported to the project maintainers
+via email or GitHub private message. All reports will be reviewed and handled
+with discretion. Maintainers have the right to remove, edit, or reject
+contributions that violate this code of conduct, and to temporarily or
+permanently ban contributors for repeated or severe violations.
+
+## Attribution
+
+This Code of Conduct is adapted from the
+[Contributor Covenant](https://www.contributor-covenant.org/), version 2.1.