Some tests left timers running when they ended, and --forceExit hid them.
- Six background test files leave an approval pending, so the background's
20-second timer ran forever. Each file now stubs that timer, as two blocks
in tests/backgroundApproval.test.js already did.
- Five popup test files show a flash message, and its timer outlived the
test. They now run on fake timers.
Both test scripts in package.json drop --forceExit.
Model: opus-5-5
sneak