ksync 0.6.1

Fix opening the app from its Kindle Library cover returning immediately to Home. The scriptlet now detaches and lets the Library shell launcher finish before opening the WAF.

Device tests now exercise the Library shell integration and require the app to remain in the foreground.

Verified on a Kindle Oasis using actual cover taps. Host tests and kindlehf cross-compilation passed. Existing settings and state are preserved.