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/runtime-adapters.test.ts

@@ -138,6 +138,38 @@ describe("runtime adapter composition", () => {
     adapters.infrastructure.dispose();
   });
 
+  it("runtime infrastructure disposal disposes telemetry first", async () => {
+    const fetcher = vi.fn(async () => new Response(null, { status: 204 }));
+    const adapters = await createRuntimeAdapters({
+      runtime: {
+        ...runtime,
+        config: {
+          ...runtime.config,
+          TELEMETRY_ENABLED: true,
+          TELEMETRY_ENDPOINT: "https://telemetry.test/events",
+        },
+      } as Runtime,
+      release,
+      host: {},
+      fetcher: fetcher as unknown as typeof fetch,
+    });
+
+    adapters.outputPorts.telemetry.emit("api.request.failed", {
+      error_kind: "SERVER_FAILURE",
+      http_status_group: "5xx",
+      attempt_count_bucket: "1",
+      route_id: "TEST_ROUTE",
+    });
+    expect(adapters.outputPorts.telemetry.pendingCount()).toBe(1);
+
+    adapters.infrastructure.dispose();
+
+    expect(adapters.outputPorts.telemetry.pendingCount()).toBe(0);
+    await Promise.resolve();
+    await Promise.resolve();
+    expect(fetcher).not.toHaveBeenCalled();
+  });
+
   it("replaces the QueryClient and coordinator for each session generation", async () => {
     const adapters = await createRuntimeAdapters({ runtime, release, host: {} });
     const previousClient = adapters.infrastructure.queryClient;