refactor(cli): simplify updater, remove cache and confirmation

- Remove the 24h disk cache (State, readState/writeState, checkInterval)
  that served stale latest versions within the TTL window
- Remove file lock (Flock) and confirmation prompt (Prompt/Terminal)
- Every check now hits the npm registry directly
- Updates always auto-install on any version mismatch within the same
  major, including rollbacks where the registry version is lower
- Drop the interactive option from check() and the confirm/declined/
  dismissed action concepts

packages/cli/src/commands/handlers/default.ts

@@ -10,7 +10,7 @@ export default Runtime.handler(Commands, (input) =>
     const directory = Option.getOrUndefined(input.directory)
     if (directory !== undefined) process.chdir(directory)
     const updater = yield* Updater.Service
-    yield* updater.check({ interactive: true })
+    yield* updater.check()
     const daemon = yield* Daemon.Service
     const transport = yield* (input.standalone ? Standalone.transport() : daemon.transport())
     const { runTui } = yield* Effect.promise(() => import("../../tui"))

packages/cli/src/commands/handlers/serve.ts

@@ -34,7 +34,7 @@ export default Runtime.handler(
         const url = HttpServer.formatAddress(address)
         console.log(input.stdio ? JSON.stringify({ url }) : `server listening on ${url}`)
         const updater = yield* Updater.Service
-        yield* updater.check({ interactive: false }).pipe(Effect.forkScoped)
+        yield* updater.check().pipe(Effect.forkScoped)
         return yield* (input.stdio ? waitForStdinClose() : Effect.never)
       }).pipe(Effect.annotateLogs({ role: "server" })),
     )