Add Tree Ring Memory

[TerminallyLazy]

Summary

• add Tree Ring Memory to Agent infrastructure
• place it with the current 2-star entries to preserve section ordering

Why it belongs

• Tree Ring Memory is a local-first Rust CLI/framework for coding-agent memory lifecycle work
• it fits alongside existing memory/context infrastructure entries such as Vestige, pi-mem, AgentPack, and Agent Memory System
• it provides SQLite/FTS recall, evidence-backed lessons, redaction/delete, consolidation, portable skill docs, and a Ratatui operator console

Checks

• git diff --check
• verified https://github.com/TerminallyLazy/Tree-Ring-Memory returns HTTP 200
• tried npx awesome-lint; it fails on the repository baseline with existing format/topic/contributing errors across the README