fix: tighten internal semantic compose contracts

harness/tests/test_local_compose_contract.py

@@ -8,15 +8,37 @@ def test_local_compose_uses_the_generic_external_endpoint_contract():
     compose = yaml.safe_load((root / "compose.yaml").read_text())
     local = yaml.safe_load((root / "deploy/compose.local.yaml").read_text())
 
-    assert set(compose["services"]) == {"core", "frontend"}
+    assert set(compose["services"]) == {"core", "frontend", "qdrant", "embedding", "embedding-model-init"}
     assert local["services"]["core"]["environment"]["AUTH_MODE"] == "none"
     assert local["services"]["core"]["ports"] == ["127.0.0.1:${THOTH_CORE_HTTP_PORT:-8787}:8787"]
     assert local["services"]["frontend"]["ports"] == ["127.0.0.1:${THOTH_HTTP_PORT:-8080}:8080"]
 
     environment = compose["services"]["core"]["environment"]
-    for name in ("THT_DWH_REST_URL", "THT_VEC_REST_URL", "THT_OLLAMA_URL", "THT_LLM_URL"):
+    for name in ("THT_DWH_REST_URL", "THT_LLM_URL"):
         assert name in environment
-    assert {"settings", "pi-state", "workspace-registry", "sessions"} <= set(compose["volumes"])
+    assert environment["THT_INTERNAL_QDRANT_URL"] == "http://qdrant:6333"
+    assert environment["THT_INTERNAL_EMBEDDING_URL"] == "http://embedding:11434"
+    assert environment["THT_INTERNAL_EMBEDDING_MODEL"] == "qwen3-embedding:0.6b"
+    assert environment["THT_INTERNAL_EMBEDDING_DIMENSIONS"] == "1024"
+    for name in ("THT_VEC_REST_URL", "THT_VEC_WRITE_REST_URL", "THT_OLLAMA_URL"):
+        assert name not in environment
+
+    assert {"settings", "pi-state", "workspace-registry", "sessions", "qdrant-data", "embedding-models"} <= set(compose["volumes"])
+
+    qdrant = compose["services"]["qdrant"]
+    assert qdrant["expose"] == ["6333"]
+    assert "ports" not in qdrant
+    assert "healthcheck" in qdrant
+
+    embedding = compose["services"]["embedding"]
+    assert embedding["expose"] == ["11434"]
+    assert "ports" not in embedding
+    assert "healthcheck" in embedding
+
+    model_init = compose["services"]["embedding-model-init"]
+    assert "ports" not in model_init
+    assert model_init["depends_on"]["embedding"]["condition"] == "service_healthy"
+    assert compose["services"]["core"]["depends_on"]["embedding-model-init"]["condition"] == "service_completed_successfully"
 
 
 def test_core_image_prepares_the_writable_pi_profile_before_mounting_config_files():