Aonsoku BasicAuth v0.14.0-ba.7

Synced lyrics test build for Synfonium-style translated LRC support.

Changes:

• Port Feishin-style translated synced lyrics parsing.
• Merge duplicate timestamp and OpenSubsonic translation lines for fullscreen display.
• Include lyrics tests in the BasicAuth release gate.
• Narrow brace-expansion overrides so Windows packaging remains compatible with Electron Builder.

Verification:

• corepack pnpm run release:basic-auth:gates passed.
• Windows installers, blockmaps, and latest.yml were generated and validated.