Release Signboard 1.5.0

[cdevroe]

Summary

This drafts the Signboard 1.5.0 release PR. It is a large update across the desktop app, CLI, MCP server, Obsidian integration, docs, and tests.

No release binaries are included here. Those will be uploaded separately.

Changelog

Board views and Planner

• Added a Table board view for scanning cards in rows.
• Added Created and Updated columns in Table.
• Added Table sorting by board order, due date, title, created date, and updated date.
• Let Table rows move cards to another list.
• Reused board search, labels, date filters, task badges, and linked-object counts in Table.
• Expanded Planner shortcuts for all open boards and current-board scopes.
• Added Planner Day and Agenda shortcut handling.
• Added source board and list context to dated cards.
• Kept Planner on the default Signboard palette while still showing board-colored source pills.
• Improved how completed lists and checked task due dates are hidden from actionable date views.

Open boards and Quick Add

• Removed the open-board tab limit.
• Added overflow tabs behind an N more switcher entry.
• Improved the quick board switcher.
• Let the switcher close open boards.
• Added board/list selection to Quick Add.
• Kept Shift + Enter for create, open, and focus notes.
• Added an optional app-level global Quick Add shortcut while Signboard is running.

Cards and editor

• Added card created and updated timestamp display.
• Added shared timestamp helpers for desktop, CLI, and MCP responses.
• Added lifecycle metadata for new cards.
• Improved task due-date behavior so checked tasks do not keep cards in date views.
• Added linked objects from the card editor.
• Supported linked Obsidian notes, local files, folders, web URLs, app deep links, and Signboard links.
• Added drag-and-drop linking for local files.
• Added URL favicon caching for linked web links.
• Added linked-object counts on Kanban cards and Table rows.
• Added missing Obsidian note states with recreate, relink, and remove actions.
• Added Open With actions for the default Markdown app, file reveal, Obsidian, and Signboard links.
• Improved card drag placeholder and drag behavior.

Obsidian

• Added Obsidian vault detection for boards.
• Added flat Obsidian-friendly card properties.
• Added signboard://open-card links for trusted board roots.
• Added validated signboard://open-board handling for vault-contained boards.
• Added managed Signboard Board.base generation.
• Added linked Obsidian note creation from the card editor.
• Added Obsidian URI copy/open actions.
• Added an optional Obsidian companion plugin.
• Let the plugin open/copy Signboard links, attach notes, handle Obsidian deep links, create boards from folders, and clean up deleted-note links after confirmation.

Calendar, settings, and notifications

• Added External Published Calendar as an opt-in local iCalendar feed.
• Served the feed only on 127.0.0.1 with a per-install token URL.
• Added board-level inclusion settings for the calendar feed.
• Included card due dates and unchecked task due dates in the feed.
• Excluded completed-list cards and checked task due dates by default.
• Moved app-wide tooltip, notification, Quick Add shortcut, and calendar settings into app settings.
• Improved due notification collection for tasks and completed workflows.

CLI and MCP

• Added signboard boards create.
• Shared default board scaffolding between CLI and MCP board creation.
• Added card timestamp data to CLI JSON output and MCP card responses.
• Added CLI sort options for oldest/newest created and updated cards.
• Kept updated as a compatibility alias for newest updated cards.
• Added MCP awareness of the Table view.
• Added MCP support for External Published Calendar board settings.
• Updated packaged CLI shims to run in Electron Node mode.
• Fixed CLI startup behavior so terminal commands do not launch the desktop app lifecycle.

Accessibility and keyboard flow

• Added shared accessibility helpers.
• Improved modal focus handling and focus restoration.
• Added live status announcements for common actions.
• Added keyboard result navigation for board search, Planner search, and Archive search.
• Added keyboard navigation for board tabs, settings sections, list actions, and filter popovers.
• Improved keyboard-only focus styling.
• Added reduced-motion and forced-colors support.
• Deferred DOM changes after native menu and select interactions where needed.

Stability, release, and docs

• Updated Electron to 40.10.1.
• Added and expanded tests for timestamps, External Published Calendar, Obsidian integration, the Obsidian plugin, CLI, MCP, board views, and Playwright flows.
• Updated the README, user guide, CLI docs, MCP docs, design notes, and agent docs.
• Added a feature showcase video outline.
• Bumped the app version to 1.5.0.

Validation

• Compared beta/1.5.0 against main: 15 commits, 75 changed files.
• Tests were not run during this PR drafting pass.