Frontend/integrate available jobs

[akprinciple]

Title: feat(frontend): integrate available jobs tab with API

closes #84

Description

This PR replaces the hardcoded dummyjobs data with dynamic, API-powered job listings on the Artisan Dashboard and Available Jobs tab.

It introduces a new mock API endpoint to serve the data while removing local data dependencies from the frontend components. This sets up a clear path for future backend/database integration. Additionally, it fixes a minor race condition with the URL query parameters filtering inside the JobCard component.

Related User Story

As an artisan, I want to see live available jobs, so that I can apply to current opportunities.

Key Changes

• API Route: Created a new GET endpoint at /api/jobs/listings to serve available jobs data.
• Dashboard Overview (page.tsx): Updated the artisan dashboard to fetch available jobs from the new API instead of using the local mock file. Added proper loading and error states.
• Available Jobs (JobCard.tsx):
  • Replaced the local dummyjobs import with a client-side fetch to /api/jobs/listings.
  • Added robust state management for loading, error, and activeFilters.
  • Fixed a race condition where URL-based filtering was being overwritten on the initial component mount.
• Filters (JobFilters.tsx): Cleaned up filter interactions to synchronize correctly with the URL search parameters and the JobCard state.
• Mock Data (dummyjobs.ts): Added unique id properties to the mock data interface so React can properly track list items by key.

Acceptance Criteria

• No dummyjobs dependency remains in the available tab (JobCard.tsx / JobFilters.tsx).
• Job data is successfully fetched from the API response (/api/jobs/listings).
• Loading states and error handling are implemented during data fetches.

[Kaylahray]

Hi please, @akprinciple resolve workflow

[akprinciple]

Conflict resolve @Kaylahray

[akprinciple]

@Kaylahray kindly merge now. The wave is ending soon

[Kaylahray]

@akprinciple not to worry you'll still get your points if I merge, Please fix your both PRs ,conflict and workflow Please

[akprinciple]

@Kaylahray Both PR has been looked into, Thank you

[Kaylahray]

Hey I was going to merge regardless but now u hv conflics here, please also help me run pnpm lint and pnpm build when you're resolving it so you cn fix the workflow @akprinciple

[akprinciple]

@Kaylahray Done