fix: ensure $150 USD is displayed for all Foundation bounties

[PoornaChandra2005]

Description

This PR ensures that ResearchHub Foundation bounties correctly display a flat $150 USD amount across all UI components, as requested in issue #466. This prevents confusion when the RSC amount fluctuates or doesn't match a standard rate.

Changes

• Updated isFoundationBounty in bountyUtil.ts with a fallback name-based check to ensure reliable identification even if environment variables are missing.
• Refactored getBountyDisplayAmount and getTotalBountyDisplayAmount to always prioritize the foundation flat fee when applicable.
• Updated multiple components to respect the foundation status when rendering currency badges and tooltips:
  • BountyMetadataLine
  • FeedItemBountyComment
  • BountyInfo
  • BountyInfoSummary
  • FeedItemActions (Bounty action button)
  • BountyTooltip
  • EarningOpportunityBanner (Earn banner on paper/post pages)
• Enhanced FeedEntry transformation logic in types/feed.ts to correctly flag foundation status for awarded bounties.

Related Issue

Fixes #466

Review Request

Tagging @yattias and @michaelcanova for review.

[chatgpt-codex-connector]

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[vercel]

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[sonarqubecloud]

Quality Gate passed

Issues
8 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[yattias]

@PoornaChandra2005 thanks for submitting a PR but this issue has already been fixed. Let us know if you are seeing something else. If you look at the Earn tab on researchhub.com you will see foundation bounties are $150