Vault Activity Heatmap 1.4.0-beta.1

Vault Activity Heatmap 1.4 mobile sync beta

This prerelease adds conflict-safe dashboard synchronization through the vault provider already used by Obsidian, plus the responsive phone interface.

Test before stable

• Back up the vault and install this same beta on every connected device.
• Obsidian Sync is the recommended provider for Windows-to-iOS and Windows-to-Android testing.
• Open Obsidian on both devices while measuring delivery; network latency remains provider-dependent.
• Select AI and notification secrets separately on each device. Secret values and selections are not synchronized.
• Test concurrent offline edits, reconnect, renames, clear history, tasks, selected-day handoff, and mobile backdrops.

See docs/mobile-sync.md and docs/mobile-testing.md in the repository. Report sync bugs with source/destination device, provider, foreground/background state, and approximate timestamps.

Stable 1.4.0 will not be published until the required physical-device matrix passes.