test(cache): add in-memory remote cache backend

[wan9chi]

Motivation

Remote cache client work needs an HTTP backend that E2E tests can start and stop without adding server lifecycle logic to the test harness.

Add remote-cache-server and cbor-http to vite-task-tools, with pnpm linking both commands into .bin. The daemon stores opaque entries, associations, and blobs in memory. It reserves and publishes its endpoint through cache.url, stops when that file is deleted, and has a bounded lifetime for failed tests. The HTTP client accepts EDN for CBOR requests and prints responses as EDN for snapshot assertions.

Six E2E cases cover entry and association semantics, blob replacement, opaque binary data, invalid requests, request limits, and daemon restart. The fixtures invoke the pnpm-linked commands directly. They are skipped on Windows because the PTY launcher cannot execute pnpm command shims. A focused unit test covers EDN escaping. CI runs the utility type check and unit test alongside the existing platform suites.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​cbor-edn@​0.2.2
	npm/​cbor2@​1.11.0
	npm/​@​fastify/​busboy@​3.2.2

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[github-actions]

fspy benchmark

linux

dynamic/launch             change  +0.42%  [ -7.03% ..  +7.88%]  overhead  +267.41%
dynamic/access             change  +0.00%  [ -1.22% ..  +1.08%]  overhead   +14.64%
dynamic/access-relative    change  -0.11%  [ -1.33% ..  +0.78%]  overhead   +61.31%
dynamic/access-contended   change  -0.42%  [ -2.24% ..  +2.02%]  overhead   +15.22%
static/launch              change  +0.62%  [ -5.32% ..  +6.37%]  overhead  +710.50%
static/access              change  -0.25%  [ -0.99% ..  +1.00%]  overhead  +807.90%
static/access-relative     change  -0.27%  [ -1.47% ..  +0.98%]  overhead +1373.95%
static/access-contended    change  +0.35%  [ -1.27% ..  +1.34%]  overhead +3151.94%

macos

dynamic/launch             change  -0.18%  [ -4.47% ..  +4.92%]  overhead  +225.31%
dynamic/access             change  -1.71%  [-12.12% ..  +5.24%]  overhead    +1.50%
dynamic/access-relative    change  -0.69%  [-11.09% ..  +8.54%]  overhead  +262.56%
dynamic/access-contended   change  -2.28%  [-15.20% .. +20.42%]  overhead    -1.84%

windows

dynamic/launch             change  +0.83%  [ -7.22% ..  +9.89%]  overhead   +24.13%
dynamic/access             change  -0.18%  [-25.66% ..  +7.49%]  overhead    +2.14%
dynamic/access-relative    change  +0.17%  [-10.24% .. +29.07%]  overhead    +1.05%
dynamic/access-contended   change  -0.93%  [-12.01% .. +24.19%]  overhead    +3.42%