fix: restore archive thumbnails on production

[posaune0423]

Summary

• stop wrapping archive fallback gateway URLs with Cloudflare /cdn-cgi/image transforms
• keep local archive paths on the existing transform path
• add regression tests for external and local archive image source generation

Testing

• NEXT_PUBLIC_BASE_URL=https://doomindex.fun NEXT_PUBLIC_GENERATION_INTERVAL_MS=600000 bun test --preload=./tests/preload.ts tests/unit/lib/archive-image-sources.test.ts tests/unit/components/ui/progressive-image.test.tsx
• bun run format
• bun --env-file=.example.vars run lint
• bun --env-file=.example.vars run typecheck
• bun --env-file=.example.vars run build

Closes #59.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b9569dd8-904b-4bdb-8710-08e302fd5429

📥 Commits

Reviewing files that changed from the base of the PR and between 7c08421 and f295903.

📒 Files selected for processing (2)

• src/lib/archive-image-sources.ts
• tests/unit/lib/archive-image-sources.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/archive-thumbnail-production-regression

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• Generate coding plan for human review comments

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[github-actions]

📦 esbuild Bundle Analysis for doom-index

This analysis was generated by esbuild-bundle-analyzer. 🤖

Meta File	Out File	Size (raw)	Note
.open-next/server-functions/default/handler.mjs.meta.json	.open-next/server-functions/default/handler.mjs	10.67 MB	⚠️ +55 B (+0.0%)

Largest paths

These visualization shows top 20 largest paths in the bundle.

Meta file: .open-next/server-functions/default/handler.mjs.meta.json, Out file: .open-next/server-functions/default/handler.mjs

Path	Size
.open-next/server-functions/default	${{\color{Goldenrod}{ █████████████████████████ }}}$ 100.0%, 10.67 MB
.open-next/cloudflare-templates/shims	${{\color{Goldenrod}{ }}}$ 0.0%, 368 B
optional-deps-missing-dependency:/critters	${{\color{Goldenrod}{ }}}$ 0.0%, 141 B

Details

Next to the size is how much the size has increased or decreased compared with the base branch of this PR.

• ‼️: Size increased by 20% or more. Special attention should be given to this.
• ⚠️: Size increased in acceptable range (lower than 20%).
• ✅: No change or even downsized.
• 🗑️: The out file is deleted: not found in base branch.
• 🆕: The out file is newly found: will be added to base branch.

[cloudflare-workers-and-pages]

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	doom-index	f295903	Commit Preview URL Branch Preview URL	Mar 14 2026, 11:27 PM