The `op export` command was removed in 0.7.x but the README still
advertised it (#116). The pen-mcp README also documented an
`npx @zseven-w/pen-mcp` quick-start that never worked because the
package ships TypeScript source against workspace-only deps with no
`bin` entry (#117).
- Strip `op export` references from all 15 root and 15 cli READMEs
- Sync AGENTS.md, CLAUDE.md, apps/cli/CLAUDE.md to match the codegen-
pipeline reality (no standalone export command anymore)
- Rewrite pen-mcp README's quick-start: explain the package ships as
part of the OpenPencil app and external clients connect over HTTP
Closes#116Closes#117