fixup! diigo-cache: the caches take their clock as a constructor argument

Past the transitional idiom: the cache logic (DiigoCacheLogic,
PublicCacheLogic in cache.ts) requires its Clock, with no default, so
cache.ts reaches no ambient time. The worker's entry module is the
edge: it makes the live clock and exports the runtime-constructed
DiigoCache/PublicCache as (ctx, env) subclasses that supply it (the
Cloudflare constraint: the runtime constructs DOs with ctx and env
only). Binding class names are unchanged, so stored state is too. The
tests' FixedClockCache extends the logic class.

Generated-by: Claude Opus 5.5

diigo-cache/tests/test-worker.ts

@@ -1,9 +1,9 @@
 /**
- * @file the tests' main module: the real worker, plus a DiigoCache on a
- * fixed clock (bound as CLOCKED_DO in wrangler.tests.jsonc), so tests can
- * interpose time through the constructor.
+ * @file the tests' main module — their edge: the real worker (whose own
+ * edge supplies the live clock), plus the private cache's logic on a fixed
+ * clock (bound as CLOCKED_DO in wrangler.tests.jsonc).
  */
-import { DiigoCache } from "../src/cache.js";
+import { DiigoCacheLogic } from "../src/cache.js";
 import type { CacheEnv } from "../src/cache.js";
 
 export * from "../src/index.js";
@@ -12,7 +12,7 @@ export { default } from "../src/index.js";
 /** 2026-10-07T12:00:00Z */
 export const FIXED_NOW = Date.UTC(2026, 9, 7, 12, 0, 0);
 
-export class FixedClockCache extends DiigoCache {
+export class FixedClockCache extends DiigoCacheLogic {
 	constructor(ctx: DurableObjectState, env: CacheEnv) {
 		super(ctx, env, { now: () => FIXED_NOW, sleep: async () => {} });
 	}