improve UI for workspaces + internal fixes

[dinmukhamedm]

• Improved UI for workspaces
• Add timestamp to clickhouse evaluation_scores
• Migrate get evaluations queries to drizzle

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[!IMPORTANT] Improved workspace UI, added timestamps to evaluation scores, and migrated evaluation queries to Drizzle with database schema updates.

• UI Improvements:
  • Enhanced workspace UI with tier display in workspace/page.tsx, projects.tsx, and workspaces-navbar.tsx.
  • Updated project-card.tsx for better project display.
  • Adjusted button styles in button.tsx.
• Backend Changes:
  • Added timestamp to evaluation_scores in evaluation_scores.rs and 001000-initial.sql.
  • Removed get_evaluation_datapoint from evaluations.rs and main.rs.
  • Migrated evaluation queries to Drizzle in route.ts and page.tsx.
• Database:
  • Updated evaluation_scores table schema in 001000-initial.sql.
  • Modified foreign key constraints in 0004_worthless_kitty_pryde.sql.
• Miscellaneous:
  • Fixed foreign key naming in 0002_snapshot.json and 0003_snapshot.json.

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