feat: add AnthropicVertexClient for claude-* models

- @anthropic-ai/vertex-sdk: proper Anthropic Messages API on Vertex
- AnthropicVertexClient: converts OAI message format ↔ Anthropic format,
  handles tool_use blocks, retries 429/503 with backoff
- createLLM: routes anthropic/* and claude-* models through new client
- Tier B/C default: claude-sonnet-4-6 via us-east5 Vertex endpoint
- /generate endpoint: accepts region param for regional endpoint testing

Made-with: Cursor
This commit is contained in:
2026-03-07 12:54:39 -08:00
parent 9c8a08a686
commit 551fdb9e54
4 changed files with 366 additions and 13 deletions

219
package-lock.json generated
View File

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