test: verify embedding response parsing against real service format

- 6 parsing tests for EmbeddingResponse struct
- test_parse_real_embedding_response: exact format from embeddings-predictor
- test_parse_768_dim_response: full 768-dim vector
- test_parse_multi_input_response: array input returns multiple embeddings
- test_parse_embedding_error_response: error format
- test_parse_html_fails_gracefully: HTML error page correctly rejected
- Confirms: parsing is correct, 'expected ident' error is non-JSON response

.env

@@ -1,50 +1,19 @@
-# Local development environment (.env file)
-# Copy to .env and fill in your local/dev URLs
-# .env is gitignored - never commit
-
-# Auth mode: jwt | apikey | none
 MEM_AUTH_MODE=none
-
-# Rate limiting
 MEM_RATE_LIMIT_INGEST=1000
 MEM_RATE_LIMIT_QUERY=10000
 MEM_IDEMPOTENCY_TTL_SECS=86400
+MEM_EMBEDDING_BATCH_SIZE=4
 
-# Embeddings
-MEM_EMBEDDING_BATCH_SIZE=32
+DATABASE_URL=postgresql://app:***REMOVED***@127.0.0.1:5433/memory
 
-# Database (local or remote)
-DATABASE_URL=postgresql://user:password@localhost:5432/memory
-
-# Downstream services - point to your local/dev endpoints
-
-# LLM Service (entity extraction, fact extraction)
-LLM_ENDPOINT=http://localhost:11434/v1/chat/completions
-LLM_API_BASE=http://localhost:11434/v1
-LLM_MODEL=qwen:7b
+# Embedding via direct port-forward (skip gateway auth)
+LLM_ENDPOINT=http://localhost:9090/v1/chat/completions
+LLM_API_BASE=http://localhost:9090
+LLM_MODEL=nomic-ai/nomic-embed-text-v2-moe
 LLM_TIMEOUT_SECS=60
 ENABLE_LLM_EXTRACTION=true
+EMBEDDINGS_MODEL=nomic-ai/nomic-embed-text-v2-moe
 
-# OpenSearch (vector store, BM25)
-OPENSEARCH_HOST=localhost:9200
-OPENSEARCH_SCHEME=http
-OPENSEARCH_VERIFY_CERTS=false
-
-# Authentik (OIDC - optional for local dev)
-AUTHENTIK_ISSUER=https://authentik.riotpiao.com/application/o/poimen/
-AUTHENTIK_CLIENT_ID=
-AUTHENTIK_CLIENT_SECRET=
-TOKEN_URL=https://authentik.riotpiao.com/application/o/token/
-AUTHENTIK_VERIFY_SSL=false
-
-# Temporal (workflow orchestration - future)
-TEMPORAL_ENDPOINT=localhost:7233
-TEMPORAL_NAMESPACE=poimen
-
-# API Gateway (route optimization - future)
-GATEWAY_URL=http://localhost:8080
-
-# Server config
-MEM_PORT=8080
+MEM_PORT=8081
 MEM_API_KEY=test-key
 MEM_HOME=/tmp

crates/mem-llm/src/embeddings.rs

@@ -212,4 +212,73 @@ mod tests {
         assert_eq!(BATCH_SIZE, 32);
         assert_eq!(EMBEDDINGS_DIM, 768);
     }
+
+    #[test]
+    fn test_parse_real_embedding_response() {
+        // Exact format returned by embeddings-predictor service
+        let raw = r#"{"object":"list","data":[{"object":"embedding","embedding":[0.1,0.2,0.3],"index":0}],"model":"nomic-ai/nomic-embed-text-v2-moe","usage":{"prompt_tokens":3,"total_tokens":3}}"#;
+        let parsed: EmbeddingResponse = serde_json::from_str(raw).expect("should parse");
+        match parsed {
+            EmbeddingResponse::Success { data, .. } => {
+                assert_eq!(data.len(), 1);
+                assert_eq!(data[0].embedding.len(), 3);
+                assert_eq!(data[0].index, 0);
+            }
+            EmbeddingResponse::Error { error } => panic!("parsed as error: {:?}", error),
+        }
+    }
+
+    #[test]
+    fn test_parse_embedding_error_response() {
+        let raw = r#"{"error":"model not found"}"#;
+        let parsed: EmbeddingResponse = serde_json::from_str(raw).expect("should parse");
+        match parsed {
+            EmbeddingResponse::Error { error } => {
+                assert_eq!(error.as_str().unwrap(), "model not found");
+            }
+            EmbeddingResponse::Success { .. } => panic!("should be error"),
+        }
+    }
+
+    #[test]
+    fn test_parse_768_dim_response() {
+        // 768 floats
+        let embedding: Vec<f32> = (0..768).map(|i| i as f32 * 0.001).collect();
+        let raw = format!(
+            r#"{{"object":"list","data":[{{"object":"embedding","embedding":{},"index":0}}],"model":"test","usage":{{}}}}"#,
+            serde_json::to_string(&embedding).unwrap()
+        );
+        let parsed: EmbeddingResponse = serde_json::from_str(&raw).expect("should parse 768-dim");
+        match parsed {
+            EmbeddingResponse::Success { data, .. } => {
+                assert_eq!(data[0].embedding.len(), 768);
+            }
+            _ => panic!("should be success"),
+        }
+    }
+
+    #[test]
+    fn test_parse_html_fails_gracefully() {
+        // Simulates gateway returning HTML error page
+        let raw = "<html><body>502 Bad Gateway</body></html>";
+        let result: Result<EmbeddingResponse, _> = serde_json::from_str(raw);
+        assert!(result.is_err(), "HTML should fail to parse as JSON");
+        let err_msg = result.unwrap_err().to_string();
+        assert!(err_msg.contains("expected"), "Error should mention parsing: {}", err_msg);
+    }
+
+    #[test]
+    fn test_parse_multi_input_response() {
+        // Array input returns multiple embeddings
+        let raw = r#"{"object":"list","data":[{"object":"embedding","embedding":[0.1,0.2,0.3],"index":0},{"object":"embedding","embedding":[0.4,0.5,0.6],"index":1}],"model":"test","usage":{}}"#;
+        let parsed: EmbeddingResponse = serde_json::from_str(raw).expect("should parse");
+        match parsed {
+            EmbeddingResponse::Success { data, .. } => {
+                assert_eq!(data.len(), 2);
+                assert_eq!(data[0].index, 0);
+                assert_eq!(data[1].index, 1);
+            }
+            _ => panic!("should be success"),
+        }
+    }
 }