⭐5 — Provider x-search de primeira classe (SuperGrok/xAI x_search) em POST /v1/search e MCP omniroute_x_search. Fallback de credenciais xai-oauth→xao→xai; distinto de web search e do X Developer MCP.
Reconciliado com o release tip (que já incluía #10981 "skip catalog-default SearXNG" deste mesmo lote): merge trouxe 5 conflitos reais de contagem gerada (llm.txt/README.md/AGENTS.md/PROVIDER_REFERENCE.md/SVGs/46 mirrors i18n, todos verificados como bump puro 347→348, sem perda de conteúdo do HEAD) + 1 conflito real de mergeable=CONFLICTING.
Durante a validação, os 3 testes novos de SearXNG expuseram um bug real de interação com #10981: `isUnconfiguredLoopbackSearchProvider()` checava o baseUrl ESTÁTICO do catálogo em vez do baseUrl efetivo (após override de `provider_options.baseUrl` ou `providerSpecificData.baseUrl` da conexão), então QUALQUER request a searxng-search — mesmo com override customizado — era rejeitado como se fosse o default não-configurado. Corrigido em `open-sse/handlers/search.ts` (resolve o baseUrl efetivo via `resolveSearchBaseUrl()` antes do skip-check, tanto para o provider primário quanto o alternate). Um teste do próprio #10988 que assumia o comportamento pré-#10981 (default localhost:8888 sempre atendido) foi atualizado para refletir o comportamento já mesclado e intencional (503 quando não configurado).
Validação completa: typecheck limpo, 70/70 testes unit (search-route/search-registry/x-search-provider/searxng-loopback-default), 24/24 vitest MCP, 14/14 integration (search-providers-catalog), lint limpo nos arquivos tocados, docs-counts-sync OK (2 drifts soft pré-existentes, não relacionados), gates estáticos (file-size/complexity/cognitive/dead-code/changelog) todos OK.
Merged — locally validated (72/72 focused tests, typecheck:core clean, all static gates green) after resolving base-drift conflicts (catalog.ts cooperative-yield insertion point, modelMetadataRegistry.ts snapshot-param signature). CI's red checks (Unit Tests fast-path shards, Fast Quality Gates, Docs Gates) are confirmed PRE-EXISTING base-red on the pure release tip — reproduced tests/unit/db-driver-bundling-externals.test.ts, tests/unit/model-catalog-runtime-invalidation.test.ts and others failing identically against origin/release/v3.8.50 with zero PR content, unrelated to this change. Thanks for the design and for absorbing #10724's value here — great work on both review rounds!
* fix(models): preserve catalog on affinity bookkeeping
Related to #8697.
Focused follow-up to #8728; this does not replace or supersede that contribution.
* docs(changelog): record model catalog affinity fix
* fix(models): keep cold catalog builds responsive
* docs(changelog): record catalog responsiveness fix
* fix(models): snapshot auto candidate capabilities
* fix(models): invalidate capability catalog snapshots
* test(models): register catalog invalidation coverage
* fix(models): bulk-load catalog capability snapshots
Resolve synced capabilities and persisted overrides from one build-local view instead of repeating per-target SQLite reads. Keep ordinary runtime lookups on demand and preserve catalog generation invalidation.
Refs: #9199
* fix(models): snapshot catalog pricing once per build
Production profiling showed per-model models.dev pricing reads and JSON parsing dominated cold catalog builds. Reuse one build-local pricing snapshot during enrichment and yield before publication so queued health checks can run, while preserving fresh reads for ordinary callers.
* docs(changelog): record catalog pricing snapshot
