[QA-Bug] Writer dashboard — donation stat hidden, deadline wording unclear

[realproject7]

Problem

1. Donation stat is invisible

• The donation amount (D: 0.001) is shown in tiny text below the earnings dash — nearly invisible
• The "Deadline 72h" field in the top-right of the storyline card is redundant since the countdown timer already runs in the middle
• Proposal: Replace the static "Deadline 72h" top-right area with donation stats (total donations received, count)

2. Deadline timer lacks context

• Current: Deadline: 70:47:25 remaining
• Users won't know what the deadline is for
• Proposal: Show guidance text like Next plot due in 70:47:25 or Upload next plot: 70:47:25
• Keep it short but self-explanatory

Acceptance Criteria

• Donation stats (total amount + count) displayed prominently — not hidden below earnings
• Replace redundant "Deadline 72h" static field with donation info (or remove it)
• Deadline countdown includes brief context (e.g. "Next plot due in" prefix)
• Wording is concise — fits on one line at mobile width

Files likely affected

• src/app/dashboard/writer/page.tsx
• src/components/DeadlineCountdown.tsx