plans: rename store-on-sx → persist-on-sx; clarify it's persistence not shop, and scope (log+kv facets, blobs delegated, cache excluded)

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

plans/content-on-sx.md

@@ -1,7 +1,7 @@
 # content-on-sx: Documents, blocks & collaborative editing on Smalltalk
 
 > **DRAFT outline.** The CMS vertical — blog, WYSIWYG editor, Ghost sync. Depends
-> on `store-on-sx` (document history as an event log). Ghost/CMS sync stays a thin
+> on `persist-on-sx` (document history as an event log). Ghost/CMS sync stays a thin
 > external adapter (Python/FFI) until a native replacement exists.
 
 rose-ash's `blog` domain is content management: a block-based WYSIWYG editor,
@@ -24,11 +24,11 @@ injected adapter, not core.
 ## Ground rules
 
 - **Scope:** only `lib/content/**` and `plans/content-on-sx.md`. May **import**
-  from `lib/smalltalk/`, and (once it exists) `lib/store/`. Do not edit substrates.
+  from `lib/smalltalk/`, and (once it exists) `lib/persist/`. Do not edit substrates.
 - **Architecture:** a document is an ordered tree of blocks (objects); an edit is a
   message (`insert`/`update`/`move`/`delete`); concurrent edits merge via a
   commutative (CRDT/semilattice) operation so order doesn't matter. History is the
-  `store` event stream; any version is a replay.
+  `persist` event stream; any version is a replay.
 - **Determinism:** merge must be commutative + idempotent (test: apply ops in any
   order / twice → same document).
 - **Commits:** one feature per commit. Progress log + tick boxes.
@@ -52,7 +52,7 @@ lib/content/doc.sx                      lib/content/merge.sx
         ▼                                       │
 lib/content/api.sx ── (content/edit) (content/render) (content/history) ──┐
         │                                                                  │
-        ├── op log + versions → store                                      │
+        ├── op log + versions → persist                                      │
         └── Ghost/CMS sync  → injected external adapter (thin, non-core) ──┘
 ```
 
@@ -63,7 +63,7 @@ lib/content/api.sx ── (content/edit) (content/render) (content/history) ─
 - [ ] `api.sx` + tests + scoreboard + conformance.sh
 
 ## Phase 2 — Op log + versioning
-- [ ] edit ops as `store` events; replay to any version
+- [ ] edit ops as `persist` events; replay to any version
 - [ ] `(content/history doc)`, diff between versions
 
 ## Phase 3 — Collaborative merge (CRDT)