v0.8.20

This release fixes group invitations blocked by unrelated outdated devices, keeps @everyone and team mentions compact, and handles permanently removed devices and people without leaving impossible delivery and approval work pending.

• Questions from your verified personal devices need no second AgentNet approval. Previously held, never-run questions from your verified personal devices can proceed once the receiving agent host is updated; completed work and copied history never rerun. OKs identifies human requesters correctly and offers a direct action for actual held questions.
• A selected agent can join even while unrelated group members need an update. Their copies wait independently.
• @everyone stays one tag, including in saved drafts and received messages; exact selected recipients and separate agent outcomes are preserved.
• Removing a device or revoking a person's relay access settles copies that can no longer reach them. Ordinary messages and replies accepted before sender removal still arrive. Offline and outdated devices retain resumable copies.
• Completed requests clear their remote running cards even when a status refresh races with the answer.
• Removed hosts no longer leave unusable Pending, Reply or proposal-confirmation actions. Original history remains, with an explicit Host removed state.
• Passive sync diagnostics live under Settings → About → Technical details, instead of asking for an OK with no meaningful action. Device history counters remain available under Details.
• Remote Needs you cards show the actual executing host and its recorded explanation.
• Linked history blocked by duplicate copies of the same signed membership end can resume through existing verification.
• Nested agent replies use existing change notifications, and stdout/stderr alone no longer repeats database permission checks.

The signed Android preview APK is included. Install it over the existing preview to retain identity, messages and drafts; do not uninstall or relink. Desktop installers remain unsigned. Verify downloads against SHA256SUMS.

Physical-phone latency and recovery of each device's older held records remain under verification; this release does not claim those outcomes from emulator or synthetic tests.