Fix: Align task status selection with Kanban columns

[bborn]

Summary

Fixes the mismatch between available task statuses when editing and Kanban column structure. The status change dialog now only offers the 4 statuses that directly map to Kanban columns, removing "Processing" from user selection.

Changes Made

• Removed StatusProcessing from the user-selectable status options in showChangeStatus()
• Renamed "Queued" label to "In Progress" to better match the Kanban column name
• Added comprehensive tests to verify only Kanban-mapped statuses are available for selection
• Preserved StatusProcessing as a valid internal status for system use

Why This Fix?

Previously, users could manually select 5 different statuses when editing a task:

• Backlog
• Queued
• Processing ← Could be selected but had no dedicated Kanban column
• Blocked
• Done

However, the Kanban board only has 4 columns. The "Processing" status was being mapped to the "In Progress" column through special logic, creating confusion about which status to use.

Solution

The status selection now matches the Kanban board structure:

• Backlog → Backlog column
• In Progress (internally queued) → In Progress column
• Blocked → Blocked column
• Done → Done column

The StatusProcessing status remains in the system and is still used internally when tasks are executing, but users can no longer manually select it.

Testing

• ✅ All existing tests pass
• ✅ Added new tests in app_test.go:
  • TestShowChangeStatus_OnlyIncludesKanbanStatuses - Verifies form creation and view state
  • TestShowChangeStatus_ExcludesCurrentStatus - Verifies current status is excluded from options
• ✅ Manually built and verified the binary compiles successfully

Related

Resolves task #287 - Match task statuses to Kanban column

🤖 Generated with Claude Code

[openhands-ai]

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If you'd like me to help, just leave a comment, like

@OpenHands please fix the failing actions on PR #142 at branch `task/287-match-task-statuses-to-kanban-column`

Feel free to include any additional details that might help me get this PR into a better state.

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