docs(work): add story 09 template-snapshot (founder request)

docs/work/epics/platform-retrofit/_epic.md

@@ -16,7 +16,7 @@ features:
     core-realtime,
   ]
 created: 2026-07-12T10:22:00Z
-updated: 2026-07-12T11:16:19.512Z
+updated: 2026-07-12T15:21:32.164Z
 ---
 
 ## Goal
@@ -47,6 +47,7 @@ All other gates (`typecheck`, `test`, `conformance`, `fallow:audit`, `coverage:d
 - [ ] [06 — Archive the shipped template work tree](06-archive-template-work/_story.md)
 - [ ] [07 — Library traces for @xyflow/react and zustand](07-editor-library-traces/_story.md)
 - [ ] [08 — Rewrite CLAUDE.md and AGENTS.md for Veect](08-rewrite-agent-docs/_story.md)
+- [ ] [09 — Snapshot the clean slate as an orphan template branch](09-template-snapshot/_story.md) _(founder request 2026-07-12)_
 
 ## Out of scope (from PRD)