lakehouse/auditor 16 blocking issues: cloud: claim not backed — "Verified end-to-end:"
Migrates the four TypeScript /generate callers to the gateway's /v1/chat surface so every LLM call lands on /v1/usage and Langfuse: tests/multi-agent/agent.ts::generate() provider="ollama" tests/agent_test/agent_harness.ts::callAgent provider="ollama" bot/propose.ts::generateProposal provider="ollama_cloud" mcp-server/observer.ts (error analysis) provider="ollama" Each migration follows the same pattern as the prior generateCloud() migration (already on /v1/chat from 2026-04-24): replace `fetch(SIDECAR/generate)` with `fetch(GATEWAY/v1/chat)`, swap the prompt-style body for OpenAI-compat messages array, extract content from `choices[0].message.content` instead of `text`. Same upstream models in every case — gateway is the new home for the call, transport otherwise unchanged. Adds scripts/check_phase44_callers.sh — fail-loud regression guard that exits non-zero if any non-adapter file fetches /generate or api/generate. Adapter files (crates/gateway, crates/aibridge, sidecar/) are exempt. Pre-tightening regex flagged prose mentions in comments; the shipped regex requires `fetch(...)` or `client.post(...)` shape so comments don't trip it. Verification: bun build mcp-server/observer.ts compiles bun build tests/multi-agent/agent.ts compiles bun build tests/agent_test/agent_harness.ts compiles bun build bot/propose.ts compiles ./scripts/check_phase44_callers.sh ✅ clean systemctl restart lakehouse-observer active Phase 44 part 2 (deferred): - crates/aibridge/src/client.rs:118 still posts to sidecar /generate directly. AiClient is the foundational Rust LLM caller used by 8+ vectord modules; migrating it is a workspace-wide refactor that needs its own commit. Plan: keep AiClient as the local- transport layer for the gateway's `provider=ollama` arm, but introduce a thin `/v1/chat` wrapper for external callers (vectord autotune, agent, rag, refresh, supervisor, playbook_memory). - tests/real-world/hard_task_escalation.ts: comment mentions /api/generate but doesn't actually call it. Comment is left intentionally as historical context; regex no longer flags it. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>