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:katFpWYB4EH9KU9NABOglnE9ekea5rBxyOY9WZeUTi1ujhFS1pVzNxrXbB7A4qGc@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