fix: support npx startup for codex package

[benvinegar]

Summary

• fix Codex MCP server startup when launched via npx bin/symlink path
• bump Codex package version to 0.1.1
• update Codex README version-pinned examples to 0.1.1

Problem

When installed via npm and launched through:

codex mcp add glance -- npx -y -p @modemdev/glance-codex glance-codex

the server could exit before MCP initialize because main-module detection compared import.meta.url to process.argv[1] without resolving symlinks.

Fix

codex/servers/glance-mcp.js

• switched main-module detection to resolve real paths with realpathSync(fileURLToPath(import.meta.url)) and realpathSync(process.argv[1]) before comparison

This keeps direct node .../glance-mcp.js behavior and also works when the entrypoint is an npx-installed bin symlink.

Validation

• npm test
• npm exec -- tsc --noEmit
• local Codex smoke test with codex exec calling MCP tool glance successfully