add goal entity, endpoint, and admin dashboard integration

[pujitakalinadhabhotla]

Description

Implements dynamic GrowingGoal functionality for the Admin Dashboard by introducing a Goal entity and backend endpoint to calculate and return progress based on donations. Reuses the existing GrowingGoal component and connects it to backend data instead of hardcoded values.

Changes Made

• Backend changes

• Created new Goal entity (goal.entity.ts) to store target amount and date range

• Registered Goal entity in data-source.ts and donations.module.ts

• Added getActiveGoalSummary() in DonationsService to determine active goal, calculate total donations in range, compute progress, and format date range

• Added GET /donations/goal/active endpoint in DonationsController to return goal data and progress

• Frontend changes

• Created AdminGrowingGoal.tsx to fetch data from /donations/goal/active and handle loading, error, and empty states

• Reused existing GrowingGoal component and replaced hardcoded values with dynamic props

Testing & Verification

• Manual testing was not completed due to Docker environment issues preventing the backend from running locally.

Future Improvements/Notes

• need to still test

[thaninbew]

Good work, you weren't able to test the backend so there were a couple of issues which i resolved (in the interest of time). I also made a couple extra consistency edits to the components, details below:

Backend

• Created Goal entity to store target amount and dates.
• Registered Goal in data source and donations module.
• Added /api/donations/goal/active public GET endpoint.
• Implemented logic to sum succeeded donations within the active goal's date range.
• Mocked the active goal response for testing.

Frontend

• Created useActiveGoal custom hook to centralize data fetching via ApiClient.
• Refactored GrowingGoal component:
  • Added admin variant for different styling.
  • Set background to #FCFCFC.
  • Added box shadows to container and progress bar.
  • Fixed font to Source Sans Pro.
  • Added percentage complete calculation and pill UI.
  • Added safety checks for division by zero.
• Integrated AdminGrowingGoal into the Admin Dashboard.
• Updated Donation Page (Root) to use dynamic goal data.
• Added AdminGrowingGoalTester page for visual verification.