chore: add claude 3.7 support (#1678)

.changeset/ninety-walls-sort.md

.changeset/tricky-ties-film.md

examples/anthropic/agent.ts

examples/anthropic/chat.ts

examples/anthropic/chat_interactive.ts

examples/anthropic/prompt-caching.ts

examples/anthropic/stream.ts

examples/anthropic/thinking.ts

packages/providers/anthropic/package.json

packages/providers/anthropic/src/llm.ts

pnpm-lock.yaml