Computer use and browser use are meant to work out of the box. The PM rewrite
(3d12e86ef1) and the MSIX installer rework (47f4ab3a17) dropped the
install-time cua-driver fetch (7060ac7bed) and the Browser Use CLI install
(baa6b2e34d). On a fresh install the computer_use check_fn therefore stayed
False, so the tool never reached the model and its lazy ensure could not fire,
and browser_exec quietly fell back to the built-in tools.
- cua-driver is a default PM package, so the installers, a bare
`hermes pm install` and `hermes update` carry it on every target it builds
for. Adds the missing Android gap (the lock has no bionic artifact).
- The shared default-tool step, which the installers (via source completion)
and `hermes update` both run, provisions the Browser Use CLI for the default
and explicit Browser Use backends. `--skip-browser` declines it along with
agent-browser, and `off`/Camofox never use it.
- Installers regain --skip-computer-use / -SkipComputerUse (recorded as
`--without cua-driver`).
- The update message stops calling every default "browser tools".
Browser tools find agent-browser only in PM's store or on PATH and their
readiness check never installs it, so a fresh install silently had no
browser_* tools. Package.default marks an optional package that a bare
`pm install` also carries; a failed download of it warns instead of
failing the install. `pm install --without NAME` records the opt-out in
declined-packages.json beside PM's install state, and naming the package
explicitly clears it. agent-browser and chromium gain a Termux gap: Termux
owns its browser stack and there is no bionic Chromium.
