refactor(cache): reduce response store metadata calls

[james-elicx]

Summary

• collapse response-body writes into one reservation RPC and one publication RPC
• retain pending-object rows as the durable R2 object registry
• move orphan cleanup from every put to the metadata Durable Object alarm
• return the published entry from the publication transaction

Validation

• vp check packages/workers-response-store/src/binding.ts packages/workers-response-store/src/metadata-do.ts packages/workers-response-store/tests/e2e.test.mjs
• pnpm --filter @vinext/workers-response-store run build:examples
• pnpm --filter @vinext/workers-response-store exec vitest run tests/e2e.test.mjs tests/service-binding-e2e.test.mjs

[pkg-pr-new]

Open in StackBlitz

@vinext/cloudflare

npm i https://pkg.pr.new/cloudflare/vinext/@vinext/cloudflare@3210

create-vinext-app

npm i https://pkg.pr.new/cloudflare/vinext/create-vinext-app@3210

@vinext/types

npm i https://pkg.pr.new/cloudflare/vinext/@vinext/types@3210

vinext

npm i https://pkg.pr.new/cloudflare/vinext@3210

@vinext/workers-response-store

npm i https://pkg.pr.new/cloudflare/vinext/@vinext/workers-response-store@3210

commit: 63d8feb

[github-actions]

Example	Preview	Production	Original
app-router-cloudflare	preview	production
pages-router-cloudflare	preview	production
app-router-playground	preview	production	original
realworld-api-rest	preview	production
nextra-docs-template	preview	production
benchmarks	preview	production
hackernews	preview	production	original
workers-cache	preview	production
static-export	preview	production
web	preview	production

[github-actions]

Performance benchmarks

Compared 63d8feb against base 13cbd88 using alternating same-runner rounds. Next.js was unchanged and skipped.

0 improved · 0 regressed · 6 within ±1.5%

Scenario	Framework	Baseline	Current	Change
Client bundle size (gzip)	vinext	142.2 KB	142.2 KB	⚫ +0.0%
Client entry size (gzip)	vinext	129.6 KB	129.6 KB	⚫ +0.0%
Dev server cold start	vinext	3.24 s	3.22 s	⚫ -0.7%
Production build time	vinext	3.66 s	3.61 s	⚫ -1.4%
RSC entry closure size (gzip)	vinext	125.8 KB	125.8 KB	⚫ +0.0%
Server bundle size (gzip)	vinext	216.5 KB	216.5 KB	⚫ +0.0%

View detailed results and traces

_{🟢 improvement · 🔴 regression · ⚫ change below 1.5% · paired base/head}

[james-elicx]

Superseded by #3213, which combines the related Durable Object efficiency changes into one PR above #3209.