fix(task): Render Kanban board when user has zero tasks

[KiwiGaze]

Summary

Fixes the Kanban board disappearing when a user has zero tasks. The tasks.length === 0 check in task-list.tsx was evaluated before the view === "board" check, so the generic TaskEmptyState card always rendered — even in board view.

The fix reorders the ternary so view === "board" is checked first. KanbanBoard now renders unconditionally in board mode. Each KanbanColumn already handles its own empty state ("No tasks in {name}" + inline add-task control), so the board degrades gracefully with zero tasks.

List view behavior is unchanged — TaskEmptyState / TaskSearchEmptyState still renders when appropriate.

Closes #157

Review / Merge checklist

• PR title and summary are descriptive
• Tests included

Summary by CodeRabbit

• Improvements
  • Optimized task list rendering logic to better handle transitions between board and other viewing modes
  • Enhanced empty state handling to provide more relevant feedback depending on the active view mode
  • Improved overall display consistency when switching between different task visualization modes

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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Walkthrough

Refactored the task list rendering logic in TaskList to prioritize board view. The conditional now checks the view mode first, rendering KanbanBoard unconditionally when view === "board", while reserving empty-state components for non-board views. This ensures the Kanban board displays with its group columns even when no tasks exist.

Changes

Cohort / File(s)	Summary
Board View Rendering Logic apps/web/app/(protected)/task/components/task-list.tsx	Restructured conditional to branch on view mode first. Board view now renders KanbanBoard regardless of task count; empty states display only for list and search views. Resolves issue where Kanban board disappeared with zero tasks.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 6 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (6 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'fix(task): Render Kanban board when user has zero tasks' directly summarizes the main change—reordering conditionals to show the board view even with zero tasks instead of a generic empty state.
Linked Issues check	✅ Passed	The pull request fulfills all coding objectives from issue #157: reordering the conditional to check view mode before task count, rendering KanbanBoard unconditionally in board mode, and preserving list view empty-state behavior.
Out of Scope Changes check	✅ Passed	All changes in task-list.tsx are directly scoped to fixing the conditional rendering order to address the Kanban board visibility issue; no unrelated alterations detected.
Peer Dependency Consistency	✅ Passed	This PR only modifies task-list.tsx component file and does not change any package.json files in packages/* directory.
Api Contract Layer Conventions	✅ Passed	PR modifies only a React component file (task-list.tsx), not API route handlers or API contract layer code.

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✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/157-kanban-empty-board

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