refactor(org-profile): remove Usage Statistics from organization profile page

[kilo-code-bot]

Summary

• Remove the Usage Statistics card (OrganizationUsageSummaryCard) from the organization profile page (OrganizationDashboard), which is the default landing page after login. The usageStats tRPC endpoint queries microdollar_usage with a 30-day SUM/COUNT aggregation on every page load, adding unnecessary database pressure for the most-visited page.
• The card and its backing hook/endpoint are preserved because the admin dashboard still uses them.
• Add separate Input Tokens and Output Tokens metric cards to the dedicated usage details page (/organizations/[id]/usage-details), which previously only showed a combined "Total Tokens" figure. This ensures the token breakdown data that was on the profile page is still accessible.
• Supporting type, hook, formatter, and filter changes across the usage-details module to handle the two new metric keys (input_tokens, output_tokens).

Verification

• tsgo --noEmit --incremental false — passes with no errors
• eslint on all 8 changed files — no warnings or errors
• prettier --check — all files formatted

Visual Changes

Before	After
Organization profile page shows a "Usage Statistics" card with Total Spent, Total Requests, Total Input Tokens, Total Output Tokens	Card removed; profile page no longer makes the usageStats query
Usage details page shows 5 metric cards: Total Cost, Total Requests, Avg Cost per Request, Total Tokens, Active Users	7 metric cards: adds separate Input Tokens and Output Tokens cards

Reviewer Notes

• The OrganizationUsageSummaryCard component, useOrganizationUsageStats hook, UsageStatsSchema, and the usageStats tRPC procedure are intentionally kept because OrganizationAdminDashboard still renders the card.
• The metric card grid on the usage details page changed from lg:grid-cols-5 to lg:grid-cols-4 xl:grid-cols-7 to accommodate 7 cards.
• The new input/output token metrics reuse the existing timeseries data — no new API calls are introduced.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 files)

• src/components/organizations/usage-details/hooks/useProcessedMetrics.ts

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_{Reviewed by gpt-5.4-20260305 · 109,354 tokens}