chore: initialize EverOS 1.0.0

md-first memory extraction framework for AI agents.

Markdown is the single source of truth; SQLite holds state and LanceDB
provides the rebuildable vector + BM25 + scalar index. The codebase follows
a single-direction DDD layering (entrypoints -> service -> memory -> infra,
with component / core / config cross-cutting) enforced by import-linter.

Engineering surface:
- Coding conventions in .claude/rules/ (path-scoped) and workflows in
  .claude/skills/ (/commit, /new-branch, /pr).
- GitHub Actions CI runs make lint + test + integration; pre-commit mirrors
  the gates locally (ruff, hygiene hooks, gitlint commit-msg).
- Commit messages follow Conventional Commits, enforced by gitlint.
- make lint also enforces datetime two-zone discipline and OpenAPI drift.

CITATION.md

@@ -0,0 +1,65 @@
+# Citation
+
+[Home](README.md) > [Docs](docs/index.md) > Citation
+
+If you use **EverOS** in research or a published project, the suggested
+citation forms are below.
+
+---
+
+## Paper
+
+📄 **Paper coming soon** — a technical paper is in preparation.
+
+```
+Coming soon
+```
+
+BibTeX citation information will be added here once the paper is published.
+
+---
+
+## BibTeX
+
+```bibtex
+% Will be added when the paper is published
+```
+
+---
+
+## Software citation
+
+To cite the software itself:
+
+```
+EverOS: md-first memory extraction framework for AI agents
+Version: 1.0.0
+URL: https://github.com/EverMind-AI/EverOS
+License: Apache 2.0
+```
+
+---
+
+## Acknowledgments in your work
+
+If you use EverOS, we appreciate:
+
+- Citing the paper (when available)
+- Starring the GitHub repository
+- Mentioning EverOS in your acknowledgments section
+
+---
+
+## Stay updated
+
+- Watch the [GitHub repository](https://github.com/EverMind-AI/EverOS) for paper announcements
+- Follow [@EverMindAI](https://x.com/EverMindAI) on X / Twitter
+- Join [GitHub Discussions](https://github.com/EverMind-AI/EverOS/discussions)
+
+---
+
+## See also
+
+- [Overview](docs/overview.md)
+- [Acknowledgments](ACKNOWLEDGMENTS.md)
+- [Changelog](CHANGELOG.md)