Add OSOP session logging rule

[Archie0125]

Summary

Adds an OSOP (Open Standard for Operations Protocols) session logging rule that instructs AI coding assistants to produce structured workflow logs after multi-step tasks.

• What it does: After completing significant work (debugging, feature implementation, refactoring), the agent generates a .osop workflow definition and a .osoplog.yaml execution record capturing every step, timing, and tool used.
• Why it's useful: Gives developers an auditable, portable record of what the AI actually did — useful for code review, compliance, onboarding, and replaying past sessions.
• Universal format: OSOP is agent-agnostic and works across Continue.dev, Cursor, Claude Code, and any AI coding tool.
• Visual viewer: Logs can be explored interactively at https://osop-editor.vercel.app

References

• Agent rules repo: https://github.com/Archie0125/osop-agent-rules
• OSOP spec: https://github.com/Archie0125/osop-spec

Files Added

• rules/osop-session-logging/osop-session-logging.md — The rule file with YAML frontmatter
• rules/osop-session-logging/rules.json — Rule metadata
• Updated README.md — Added entry under General section