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Marc-André BombeckandClaude Opus 4.7
27310e4f9a
Phase C1 (v1.4.15) — provider abstraction review. Adds `MockAIProvider` (`src/lib/ai/mock-client.ts`) so contract tests can exercise the route-level interface without burning network calls on every CI run. The mock satisfies `AIProvider`, lets tests queue a list of canned responses, and records every `CompletionParams` invocation for later assertion. Adds a contract test file (`provider-contract.test.ts`) that walks every concrete provider — Codex, OpenAI, Anthropic, Local, Mock — and asserts each one returns a `CompletionResult` with the four contract-required fields (`content`, `tokensUsed`, `model`, `providerType`). Network is stubbed per provider; the test exists to catch interface drift, not to retest each provider's wire format. The route at `/api/insights/generate` already imports the abstract `AIProvider` via `resolveProvider()`, so the consumer side needs no change — this commit ratchets the contract with explicit tests so future provider additions (medical-grounding, multi-provider redundancy in v1.4.16) cannot silently regress the interface. Tests: +7 (132 → 139 ai-domain). 972 / 972 unit pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>