chore(release): 3.23.0 — fix Glama build (add neuro-cortex-memory console script) (#64)

Glama (and any uv-based registry indexer) builds the repo with `uv sync` and
launches the server via `uv run neuro-cortex-memory` — it does NOT use the repo
Dockerfile. Only `cortex-doctor` was declared in [project.scripts], so the spawn
failed (`No such file or directory`), the container exited before the MCP
handshake, no tool registered, and the tools score collapsed.

Add the `neuro-cortex-memory` console script (entry point
`mcp_server.__main__:main`). Verified: `python -m mcp_server` starts the stdio
server and registers all 46 MCP tools at import time without a PostgreSQL
connection (returncode 0 on EOF, no traceback), so tools/list answers inside
Glama's DB-less container. The marketplace install path (scripts/launcher.py) is
unaffected.

Bump 3.22.0 -> 3.23.0 in pyproject.toml, .claude-plugin/plugin.json,
.claude-plugin/marketplace.json (metadata + cortex entry + version_note) and
CHANGELOG. No runtime behaviour change.

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

Author: cdeust