App requires macOS 15.7 but description states "Requires macOS 15 Sequoia or later"

**macOS version:** 15.6 (Sequoia)
**App version:** 1.5.2 (Textream v1.5.2.dmg)

**Issue:**
The app description states "Requires macOS 15 Sequoia or later", but the `LSMinimumSystemVersion` in the app bundle's `Info.plist` is set to `15.7`, causing macOS to block the app with "You can't use this version of the application with this version of macOS."

Verified with:
\`\`\`
$ defaults read /Volumes/Textream\ 1/Textream.app/Contents/Info.plist LSMinimumSystemVersion
15.7
\`\`\`

**Expected behavior:** The app should launch on macOS 15.0+ as described.

**Fix:** Set `LSMinimumSystemVersion` to `15.0` in the build configuration before packaging.