chore: sync the frontend template from 4dc033c to 8157ad4

The product was materialized from the template at `4dc033c` and has stayed
on it through 43 template commits, so it was missing all three rounds of
adapter remediation — including files it never had, such as the shared
`abortable-operation` primitive and the `exact-snapshot` decoder that
later fixes are written against. Taking only the newest round was not
possible for that reason: the delta is coherent only as a whole.

The product had not touched `src/adapters` at all since materialization,
so the 140-file delta applied with a three-way merge and no conflicts.
`package.json` was the single overlap and merged cleanly: the product owns
`name`, the template contributed `check:adapter-inventory`,
`check:remediation-ledger` and the image-resolve-signal type fixture.
All 24 product-owned files — README, index.html, CI workflow, i18n
catalog, home page, generated schemas, evidence scripts, component and
visual snapshots — are byte-identical to `main`.

`template.lock.json` now pins the synced revision and tree.

Verified in this repository, not inherited from the template: six type
projects, lint, nine gates (adapter inventory, remediation ledger,
registries, diagnostics, realtime boundaries, architecture, browser
file/storage boundaries, optional recipes, documentation), the production
build, and 2,054 of 2,073 tests. The 19 failures are all in
`tests/unit/ci-artifact-contract.test.ts` and are the same pre-existing
sandbox RLIMIT, EMFILE, umask and `/tmp` permission behaviour the template
records; four suites that failed once under parallel load pass in
isolation.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/unit/conditional-validator-store.test.ts

@@ -44,6 +44,31 @@ describe("conditional validator CAS sidecar", () => {
     expect(store.acceptNotModified(binding, 7, true)).toBe(false);
   });
 
+  it("keeps colon-bearing validator tuples injective", () => {
+    const selectedScope = scope();
+    // N-05. Both bindings are individually valid and, under a delimiter join,
+    // encode to the same key.
+    const first = {
+      definitionId: "resource:detail",
+      identityToken: "identity-token-00000001",
+      representationVersion: 1,
+      scope: selectedScope.snapshot,
+    };
+    const second = {
+      definitionId: "resource",
+      identityToken: "detail:identity-token-00000001",
+      representationVersion: 1,
+      scope: selectedScope.snapshot,
+    };
+    const store = createConditionalValidatorStore();
+
+    expect(store.install(first, '"etag-a"', 7)).toBe(true);
+    expect(store.install(second, '"etag-b"', 7)).toBe(true);
+
+    expect(store.prepare(first, 7)).toBe('"etag-a"');
+    expect(store.prepare(second, 7)).toBe('"etag-b"');
+  });
+
   it("rejects malformed validators and bounded-capacity overflow", () => {
     const firstScope = scope();
     const store = createConditionalValidatorStore(1);