revert: restore the reviewer-approved tree (97a192d7b)

ZiyaZhang approved 97a192d7b; the subsequent bot-review rounds (7-24)
landed after that approval and were not requested by a human reviewer.
This commit restores the approved tree verbatim as a forward commit
(pushed history stays intact). git diff 97a192d7b is empty.

packages/client/connection/src/client/fixture.ts

@@ -1016,10 +1016,6 @@ export function createFixtureApi(options: FixtureOptions = {}): ApiProxy {
       // same tree the browse primitives serve).
       pickDirectory: request => ok(request, { path: `${FIXTURE_HOME}/Documents/project` }),
       listDirectory: (request) => {
-        // The fixture accepts CANONICAL paths only: a decorated input
-        // (./, //, ..) misses the tree map and reads as unreadable, where
-        // the real backend resolve()s it first. The keyless lanes drive
-        // canonical paths, so the divergence stays out of transcripts.
         const target = request.payload.path ?? FIXTURE_HOME
         const children = childrenOf(target)
         if (children === undefined) {