- new note .planning/notes/core-plugins-own-repos.md: shared core plugins live in sm-<name>-plugin repos mounted as submodules
- 01-CONTEXT deferral points to the note; PROJECT constraint and Key Decisions row
- ROADMAP Phase 12 repos and the 12-01 entry, and Phase 12 plans 12-01, 12-02, 12-05 name sm-user-plugin and the submodule commit workflow
- Probe keios.eu user, jz chat, and pxpx checkout for models→sibling uses
- Every live edge is a cast or service-calling hook; no "other" category
- Close folded todo verify-models-leaf-rule; bulk port may proceed
Records the move from Scala to Go, the compiled-plugin decision, the
Płytarium port as the v1 target, and the Go ecosystem research that
backs the choice. No code yet.