Build subscription management dashboard with recurring invoice history and controls

[Kingsman-99]

Overview

StellarSplit supports recurring invoice subscriptions from stored templates. Build a /subscriptions dashboard page where creators can view active subscriptions, see upcoming invoice generation dates, pause/cancel subscriptions, and view the full invoice history per subscription.

Requirements

• /subscriptions page listing all active subscriptions with: template name, frequency, next run date, total invoices generated, total USDC collected
• /subscriptions/[id] detail page: subscription config, editable fields (pause, cancel), full invoice history table
• Pause/resume/cancel actions call the corresponding contract entry points via the SDK
• Upcoming invoice dates computed from subscription frequency and shown in a calendar-style preview
• Real-time status via polling (no WebSocket needed here)
• Write unit tests for the subscription list and detail components

Acceptance Criteria

• /subscriptions list page renders correctly with all fields
• /subscriptions/[id] detail page with full history table
• Pause/resume/cancel actions call SDK correctly
• Upcoming dates computed correctly from subscription config
• npm run lint passes with zero errors
• TypeScript compiles with zero errors
• npm run build succeeds

Definition of Done

All CI checks must pass before the PR is reviewed.

[Promise278]

I have experience with system design I would love work on these issue and submit PR after 3 hours given to me

[nurudeenheroic]

I'd be happy to contribute and deliver a reliable solution.

[grantfox-oss]

🦊 GrantFox — @Promise278 has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #384)
2. Your PR will be reviewed by the Stellar-split maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@Promise278's PR #393 was approved and merged by @Kingsman-99.

🏆 @Promise278: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (481 total points). Track your full progress on GrantFox.

👏 Great work, @Promise278! Keep contributing to Stellar-split.