refactor: reach adapter groups through their barrel

bootstrap과 feature 어댑터가 어댑터 내부 파일을 직접 겨누던 15곳을 그룹
배럴로 바꾼다. 커널(platform/**) 간선과 그룹 내부 import는 파일 경로를
유지한다 — check:adapter-inventory가 그 경로를 직접 검증한다.

번들 영향 없음: 초기 JS가 도입 전후 모두 181114 gzip bytes로 동일하다.
sideEffects 선언 없이도 재수출이 트리셰이킹된다.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/bootstrap/runtime-adapters.ts

@@ -3,13 +3,13 @@ import {
   createExternalAuthSessionAdapter,
   createUnavailableSessionAdapter,
   type ExternalSessionOwner,
-} from "../adapters/auth/external-session-adapter.ts";
-import { createDiagnosticsAdapter } from "../adapters/diagnostics/bounded-diagnostics.ts";
-import { createHttpClient } from "../adapters/http/client.ts";
+} from "../adapters/auth/index.ts";
+import { createDiagnosticsAdapter } from "../adapters/diagnostics/index.ts";
 import {
   createContractHttpExecutor,
+  createHttpClient,
   type HttpExecutionObservation,
-} from "../adapters/http/http-execution-v3.ts";
+} from "../adapters/http/index.ts";
 import {
   attemptBucket,
   durationBucket,
@@ -19,14 +19,14 @@ import {
 import type { TelemetryEventName } from "../contracts/telemetry.ts";
 import { createBrowserCrossContextInvalidationFromHost } from "../adapters/cross-context-invalidation/index.ts";
 import {
+  createConditionalValidatorStore,
+  createQueryClient,
+  createServerStateScopeRuntime,
   createTanStackCacheCoordinator,
-} from "../adapters/query-cache/tanstack-cache-coordinator.ts";
-import { createQueryClient } from "../adapters/query-cache/tanstack-query-cache.ts";
-import { createServerStateScopeRuntime } from "../adapters/query-cache/server-state-scope-runtime.ts";
-import { createConditionalValidatorStore } from "../adapters/query-cache/conditional-validator-store.ts";
-import { createBrowserStorageAdapter } from "../adapters/storage/browser-storage-adapter.ts";
-import { createBrowserMutationIntentFactory } from "../adapters/platform/browser-mutation-intent-factory.ts";
-import { createTelemetryAdapter } from "../adapters/telemetry/best-effort-telemetry.ts";
+} from "../adapters/query-cache/index.ts";
+import { createBrowserStorageAdapter } from "../adapters/storage/index.ts";
+import { createBrowserMutationIntentFactory } from "../adapters/platform/index.ts";
+import { createTelemetryAdapter } from "../adapters/telemetry/index.ts";
 import type { AuthSessionPort } from "../application/ports/auth-session-port.ts";
 import type { ReleaseInfo } from "../application/ports/release-info-port.ts";
 import {