feat: expand trust governance and mesh recovery

[kwalus]

Summary

• expand the existing trust system with a rebuilt trust page, normalized peer review cards, and direct operator actions for reconnect, sync, and profile recovery
• harden mesh recovery with sparse public-history catch-up repair, queued-message flush fixes, sidebar peer-state stability, stronger diagnostics, safer invite endpoint handling, and bounded avatar/profile propagation
• bring the public docs, versioning, and regression coverage up to the current reviewed 0.5.38 release line, while removing one leftover local-only launcher from the public tree

Why

• this builds on Canopy's existing trust and peer-governance model by giving operators more visibility and practical controls instead of passive warnings alone
• the networking fixes target real recovery and convergence problems under reconnect churn, partial history, and profile/state drift
• the public repo should reflect the latest reviewed trust, reliability, and operator workflow improvements rather than lagging on an older release line

Test plan

• python3 -m py_compile canopy/__init__.py canopy/api/routes.py canopy/core/app.py canopy/core/channels.py canopy/core/device.py canopy/network/connection.py canopy/network/invite.py canopy/network/manager.py canopy/network/routing.py canopy/ui/routes.py
• python3 -m unittest tests.test_frontend_regressions tests.test_trust_profile_recovery tests.test_public_channel_bootstrap_sync tests.test_targeted_mesh_relay_routing tests.test_network_connectivity_regressions tests.test_peer_activity_sidebar_state tests.test_profile_sync_metadata tests.test_manager_trust_gating tests.test_peer_forget_cleanup_api tests.test_routing_catchup_digest_metadata tests.test_connection_arbitration_regressions tests.test_device_profile_avatar_hardening tests.test_peer_public_identity_preview tests.test_peer_state_diagnostics