bugfix

internal/infra/llm/anthropic.go

@@ -9,8 +9,12 @@ import (
 	"github.com/anthropics/anthropic-sdk-go/option"
 )
 
-// Compile-time assertion: AnthropicClient must satisfy LLMClient.
-var _ LLMClient = (*AnthropicClient)(nil)
+// Compile-time assertion: AnthropicClient must satisfy LLMClient + Embedder
+// (Embed returns ErrEmbeddingsUnsupported).
+var (
+	_ LLMClient = (*AnthropicClient)(nil)
+	_ Embedder  = (*AnthropicClient)(nil)
+)
 
 // AnthropicClient 通过官方 SDK 调用 Anthropic Messages API。
 // baseURL 可改写以走 LiteLLM/OpenRouter 等代理。
@@ -152,3 +156,12 @@ func (c *AnthropicClient) CountTokens(ctx context.Context, modelID string, req R
 	}
 	return int(res.InputTokens), nil
 }
+
+// Embed is unsupported: Anthropic has no embeddings API. Embeddings must target
+// an OpenAI-compatible or Gemini endpoint; callers degrade to keyword fallback.
+func (c *AnthropicClient) Embed(context.Context, string, []string) ([][]float32, error) {
+	return nil, ErrEmbeddingsUnsupported
+}
+
+// EmbedDims is 0 since Anthropic produces no embeddings.
+func (c *AnthropicClient) EmbedDims(string) int { return 0 }