fix(calculator): SSR with ?g_model so share links open the right model

[Oseltamivir]

Fixes #430.

Summary

The TCO calculator's SSR'd HTML always rendered DeepSeek R1 (the in-memory default) because URL params were only applied client-side via the useLayoutEffect inside GlobalFilterContext. Users opening a shared link like /calculator?g_model=DeepSeek-V4-Pro&… saw a flash of R1 until JS finished hydrating — and any preview/scraper that does not run JS saw R1 outright.

Read g_model/i_seq/i_prec from searchParams in the calculator page (server component) and, when present, mount a fresh GlobalFilterProvider with the URL-derived initials inside the calculator's client tree. SSR now renders the requested model straight away. Mirrors the per-page-provider pattern used by the compare/[slug] route.

Test plan

• curl /calculator?g_model=DeepSeek-V4-Pro → SSR HTML contains DeepSeek V4 Pro 1.6T
• curl /calculator (no params) → SSR still shows R1 default
• Playwright → V4 Pro selected in dropdown + chart caption + chart data
• Share button still round-trips g_model=DeepSeek-V4-Pro
• Unit test for resolveCalculatorUrlSeed (8 cases)
• Two new Cypress regressions in throughput-calculator.cy.ts
• pnpm typecheck && pnpm lint && pnpm fmt && pnpm test:e2e all green

🤖 Generated with Claude Code

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Note

Low Risk
Scoped to calculator routing and filter initialization; unknown URL values are ignored and behavior without params is unchanged.

Overview
Fixes #430: shared calculator links like /calculator?g_model=DeepSeek-V4-Pro no longer flash the default model (DeepSeek R1) on first paint.

The calculator page is now an async server component that reads searchParams and passes a typed seed from new resolveCalculatorUrlSeed (g_model, i_seq, i_prec, validated against known enums). ThroughputCalculatorDisplay mounts a nested GlobalFilterProvider with those initials when the seed is non-empty, so SSR HTML matches the URL before client hydration (same idea as compare routes).

Coverage adds Vitest for the resolver and Cypress checks that raw HTML and the model dropdown show the URL model.

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Project	Deployment	Actions	Updated (UTC)
inferencemax-app	Ready	Preview, Comment	Jun 8, 2026 6:58am

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