Ignore Windows pause commands so they can't stop the office speakers

[RichKelsey]

Problem

#109 tried to tell Teams' automatic pause apart from a real one by checking whether the mic was open. It still pauses: on the first test call after updating to 1.0.48, no SmtcPauseIgnored event was logged, so the pause didn't arrive while the mic was open. The likely cause is Bluetooth headsets, which send pause when they connect, switch into call mode, turn off or are taken off. Windows passes those on exactly like a media-key press, so there's no way to filter them.

Fix

On Windows, pause commands from the OS no longer reach Sonos:

• Native SMTC addon (main.ts): the pause action is ignored and logged (SmtcPauseIgnored telemetry event).
• Chromium media session (useMediaSession.ts): the pause handler does nothing on Windows. It's a no-op rather than null so Chromium doesn't apply its own default.

Still works from Windows: play, next, previous. Pausing from the app's player controls and the taskbar thumbnail buttons is unchanged. macOS keeps its existing media-session pause behaviour.

The pause button in the Windows media flyout is still shown but does nothing. Hiding it would need a native addon change.

Removes the now-unused mic-in-use module from #109.

Testing

• npm run typecheck, npm run test:run and ESLint pass.
• Not yet tested in a real Teams call or with Bluetooth headphones.

🤖 Generated with Claude Code

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	70.5%	2144 / 3041
🔵	Statements	67.47%	2458 / 3643
🔵	Functions	61.78%	679 / 1099
🔵	Branches	62.44%	2308 / 3696

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
renderer/src/hooks/useMediaSession.ts	34.93%	49.25%	30.76%	34.78%	38-55, 62-70, 76, 89-94, 100, 106-112, 124-147

Generated in workflow #161 for commit 8bbe212 by the Vitest Coverage Report Action