Restore official HyperMemory skill and streamline lifecycle

[i-am-dogboy]

Summary

• restore the official HyperMemory MCP skill baseline, including its YAML metadata and full protocol sections
• classify only narrow standalone greetings and acknowledgements as lightweight so prompts like hey skip recall without suppressing meaningful short requests
• dispatch one fresh memory-writer with fork_turns="none" and continue immediately without waiting, polling, reading, or messaging it
• align packaged agent contracts, repository guidance, documentation, and regression tests with the fire-and-forget lifecycle
• preserve the token-accounting fixes already merged to main

Validation

• .venv/bin/ruff check plugins packages tests scripts
• .venv/bin/pytest -q (19 passed)
• .venv/bin/python scripts/build_plugin_archives.py
• HyperMemory and HyperColab plugin validators
• HyperColab generic skill validator
• python -m py_compile for the HyperMemory hook and token listener

The official HyperMemory skill intentionally retains version, enforcement, and trigger; the generic Codex skill validator rejects those official extended fields, so the plugin validator and repository tests cover it instead.