chore(storage,workspace): gates — coverage, catalogs, bilingual note

- Per-file 100% coverage across the five new packages (invariant
  companion suites, failure-injection negatives, lifecycle and
  malformed-medium branches).
- Canonical README Model Experience / Known Limitations sections; new
  storage/ and workspace/ group READMEs; packages/README.md rows (budget
  ceiling raised 760 → 790 for the two new groups).
- Cordis catalog/type-link registrations, service-role classification,
  and regenerated catalogs/graphs for the new services and events.
- Agent Note: English body + i18n pairing record; design-sketch fences
  opted out of doc-typecheck as ignore-check.
- Two exactOptionalPropertyTypes/discriminant fixes in new tests.

doc-sync (24 gates), typecheck, hygiene, and the five-package suite
(92 tests) all pass.

packages/storage/storage-sqlite/README.md

@@ -19,17 +19,19 @@ interface Config {
 
 ## Model Experience
 
-### What the model sees
+### Stored domain records
 
-Nothing. This backend contributes no prompt, tool, or schema; it persists non-session domain data for host-side consumers.
+#### What the model sees
 
-### Token effect
+Nothing. This backend contributes no prompt, tool, or schema; it persists non-session domain data (workspace records, future session sidecar metadata) behind `ctx.storage` for host-side consumers only.
+
+#### Token effect
 
 Zero live-request tokens.
 
-### KV Cache effect
+#### KV Cache effect
 
-None — no live request prefixes are touched.
+None — the backend never touches live request prefixes.
 
 ## Known Limitations and Deferred Work