* fix(browser): focus newly opened image tabs
Focus the window before the webview so Command+W closes the new
image tab instead of the original tab after a plain image click.
Add tests for focus order, image loading, and close-shortcut forwarding.
Fixes#34114
* test(browser): verify image tab focus with native keyboard input
* refactor(ci): keep browser E2E routes within registry size limit
* fix(ci): enable background launch for native browser regression
* test(ci): include browser routes in isolated detector fixture
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Co-authored-by: Neil <neil@stably.ai>
