Remove orphaned research probes (pixelscan, creepjs, headless-tells)

[devin-ai-integration]

What and why

research/pixelscan-probe.ts, research/creepjs-probe.ts, and research/headless-tells.ts are one-off probes referenced only by tsconfig.harness.json (type-check) and absent from research/README.md, which documents a different three-file set. Delete them and their include entries. Dead-code scan finding sfind-acf87e22f2574bc3acbb2a733cec7223.

Checklist

• bun run release:check passes locally — only build:harness and lint were run (see below).
• Guard proxy invariant — unrelated (no runtime change).
• No secret value reaches the model sandbox — unrelated.
• Dependency pins — unrelated.
• Public API changes — none.
• CI job names unchanged.
• No unit test imports src/worker.ts.
• User-visible behaviour — none; research/ is unsupported and not shipped.
• Nothing private is being committed.

How it was verified

bun run build:harness and bun run lint pass after removal. rg -i 'pixelscan-probe|creepjs-probe|headless-tells' returns no remaining references outside the deleted files.

Link to Devin session: https://app.devin.ai/sessions/19c5905cfa664b2b950bc667226c2501
Open in Devin Desktop: https://app.devin.ai/desktop/session/19c5905cfa664b2b950bc667226c2501?variant=devin
Requested by: @CuriosityOS

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge because it removes only unreferenced, unsupported research utilities and keeps the harness configuration synchronized with the remaining files.

Summary

This PR removes three undocumented, standalone browser-fingerprinting research probes and removes their corresponding entries from the TypeScript harness configuration.

• Production code, public APIs, dependencies, and runtime behavior are unchanged.
• No remaining scripts, workflows, imports, or documentation reference the deleted probes.
• The remaining research and harness file set stays buildable and type-checked.

_{Reviews (1) · Last reviewed commit: "Remove orphaned research probes (pixelsc..."}

[devin-ai-integration]

Starting E2E review of BetterWright/betterwright PR #214 (head 3dbed2f); checking PR state and prior coverage first.

[CuriosityOS]

Landed on main via #224 (consolidated dead-code cleanup).