feat: initial release of @mobiletic/anonymizer

Framework-agnostic PII anonymization extracted from Mobiletic's chatbot.
Pluggable LLM detection + configurable regex fallback, deterministic
coreference, and streaming-safe de-anonymization.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our community a harassment-free
+experience for everyone, regardless of age, body size, visible or invisible disability, ethnicity, sex
+characteristics, gender identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and
+healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment include demonstrating empathy and
+kindness, being respectful of differing opinions, giving and gracefully accepting constructive feedback,
+and focusing on what is best for the community.
+
+Unacceptable behavior includes the use of sexualized language or imagery, trolling or insulting comments,
+public or private harassment, publishing others' private information without permission, and other conduct
+which could reasonably be considered inappropriate in a professional setting.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the project team at
+`conduct@mobiletic.com`. All complaints will be reviewed and investigated promptly and fairly.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org),
+version 2.1.