NomiFun browser engine — vendored Playwright InjectedScript
============================================================

This directory (`crates/agent/nomi-browser-engine/injected/`) contains source
code vendored from the Playwright project, plus a generated bundle of it.

Upstream
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- Project:  Playwright
- Owner:    Microsoft Corporation
- Repo:     https://github.com/microsoft/playwright
- License:  Apache License, Version 2.0
- Pinned commit: 4b1b9d681f8a7b1dffafa973ef705f28661d4607  (2026-04-14)
- Vendored on:   2026-06-17

What is vendored
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`vendor/injected/src/`   — Playwright `packages/injected/src/**` (the in-page
                           browser toolbox: InjectedScript + actionability,
                           ARIA/role utils, aria-snapshot, selector engines).
`vendor/isomorphic/`     — Playwright `packages/isomorphic/**` (helpers that
                           `@isomorphic/*` imports resolve to; esbuild inlines
                           only the reachable subset at bundle time).
`vendor/protocol/src/channels.d.ts`
                         — Playwright `packages/protocol/src/channels.d.ts`,
                           imported type-only (`import type ... from
                           '@protocol/channels'`) and erased at build time.

Most vendored source files retain their original Apache-2.0 license header
(Copyright (c) Microsoft Corporation). The following carry their own (preserved
verbatim) third-party license headers:
- `vendor/isomorphic/cssTokenizer.ts` — CC0 1.0 (public domain); original at
  https://github.com/tabatkins/parse-css.
- `vendor/injected/src/clock.ts` — BSD-3-Clause (Christian Johansen / sinonjs),
  with Microsoft modifications.
- `vendor/injected/src/recorder/clipPaths.ts` — MIT (Copyright (c) Microsoft).
- `vendor/isomorphic/stackTrace.ts` — MIT (Isaac Z. Schlueter et al.).
(clock.ts / clipPaths.ts / stackTrace.ts are not reachable from the
`injectedScript.ts` entry and are tree-shaken out of `dist/injected.js`; they
are vendored only because the package is vendored whole.)

Generated bundle
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`dist/injected.js` is a GENERATED single-IIFE bundle of the above, produced by
`build.sh` (esbuild via bun). It is checked in so that `cargo build` never
depends on Node/bun — the Rust crate `include_str!`s it directly. It carries an
attribution banner at its head. Do not edit it by hand; regenerate via
`build.sh` after updating `vendor/`.

The bundle fixes `browserName='chromium'` at InjectedScript construction time
(see `src/injected.rs`); Playwright's WebKit/Firefox runtime branches are thus
dead-at-runtime. We vendor the package whole rather than hand-pruning, to keep
upstream upgrades tractable.

Modifications
-------------
The vendored `.ts` sources are unmodified from upstream. The only transformation
is the esbuild bundling step in `build.sh` (path-alias resolution mirroring
Playwright's tsconfig `paths`, CSS-as-text loader, IIFE wrapping with a global
name). A copy of the Apache-2.0 license text accompanies the repository.