feat: drop the bespoke Anthropic client for ai-kit's Groq -> OpenRouter chain - #49
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…er chain
This was the one hand-rolled AI client in a fleet where everything else
installs ai-kit — needing its own ANTHROPIC_API_KEY, a credential this
fleet doesn't otherwise carry. Every deployment only ever has
GROQ_API_KEY / OPENROUTER_API_KEY set, so the four callers (form-assist,
session-prep, ai-chat, digest) degraded on every single deployment,
silently, exactly as designed — which is a working fallback, not a
correct one.
lib/domain/anthropic.ts -> lib/domain/llm.ts: same callClaude/callLLM
signature and null-on-failure contract every caller already handles, now
backed by freeChain('SURF') + usableChain + tryChain across Groq and
OpenRouter instead of a single vendor's Messages API. Also wires the same
createHealthTracker pattern adopted fleet-wide onto /api/health as an
informational `llm` field — never gates the 200/503 the deploy pipeline
checks, since a dead key can't be fixed by a restart.
Does not touch lib/domain/embeddings.ts (OpenAI text-embedding-3-small,
needed for real vector embeddings — a different kind of call ai-kit's
chat-only chain doesn't cover).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HVwg8DKHQktxJuHeLM3xpG
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Summary
ANTHROPIC_API_KEY, a credential this fleet doesn't carry anywhere. Every deployment only ever setsGROQ_API_KEY/OPENROUTER_API_KEY, so all four callers (form-assist, session-prep, ai-chat, digest) have been silently degrading to their rule-based fallback on every deployment — a working fallback, not a correct one.lib/domain/anthropic.ts->lib/domain/llm.ts: samecallClaude/callLLMsignature and null-on-failure contract every caller already handles, now backed byfreeChain('SURF')+usableChain+tryChainacross Groq -> OpenRouter instead of a single vendor.createHealthTrackerpattern used fleet-wide onto/api/healthas an informationalllmfield — never gates the 200/503 the deploy pipeline checks.lib/domain/embeddings.ts— that's OpenAItext-embedding-3-smallfor real vector embeddings, a different kind of call ai-kit's chat-only chain doesn't cover. Separate, still-open gap.Test plan
npm run verify(format + lint + typecheck + test) — all green, 627/627 tests passing