bug: Daily/weekly summary always shows "0 tasks" regardless of actual task count

[Ridanshi]

Summary

The daily/weekly summary section displays 0 tasks even when tasks are successfully created and visible elsewhere in the application.

The UI does not re-render with updated task counts after task creation, completion changes, or deletion operations.

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Context

Affected area:

• summary/dashboard statistics rendering
• task state synchronization logic

Current behavior:

• tasks are added successfully,
• task lists update correctly,
• but the summary counters remain stale and continue showing 0.

This creates inconsistent dashboard behavior and makes progress tracking unreliable.

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Steps to Reproduce

1. Create multiple tasks
2. Verify tasks appear in the task list
3. Navigate to or refresh the summary/dashboard section
4. Observe:
   • daily summary shows 0 tasks
   • weekly summary shows 0 tasks
   • counters do not match actual stored tasks

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Expected Behavior

The summary section should:

• automatically reflect the correct task count,
• update after task creation/deletion,
• and stay synchronized with the current application state.

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Root Cause

The summary component appears to calculate totals from stale state or from an initialization-only render path rather than reacting to updated task data.

As a result, task statistics are not recalculated after state mutations.

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Proposed Fix

• ensure summary calculations derive from the latest task state
• trigger summary recomputation on task add/update/delete
• remove stale cached summary values if present
• ensure UI re-renders correctly after task mutations

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Tasks

• Identify stale summary state source
• Recompute totals from latest task data
• Ensure summary updates after task mutations
• Verify daily and weekly counts remain synchronized
• Add regression validation for summary rendering

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Acceptance Criteria

• Daily summary shows correct task count
• Weekly summary shows correct task count
• Summary updates immediately after task changes
• No stale values remain after refresh/navigation
• Existing task behavior remains unaffected

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Area

frontend

[kanaklatwal]

Hi, I'd like to work on this issue under GSSoC'26. Please assign it to me.

[mahekgohel]

Hi, I'd like to work on this issue under GSSoC'26. Please assign it to me.

[bhavyapandiya29]

I would like to work on this issue under GSSoC 2026.
Can you please assign it to me?