Some extensions/plugins still import the legacy @mariozechner/pi-* package names (pi-agent-core, pi-ai, pi-coding-agent, pi-tui) instead of @oh-my-pi/pi-*. Register a single Bun.plugin on first plugin/extension load that rewrites those specifiers to the current @oh-my-pi/pi-* equivalents, including the @mariozechner/pi-coding-agent/extensibility/{extensions,hooks} sub-exports. No filesystem mutation, no symlinks, no proxy files.
Fixes#973
can1357