Remove ChromaDB healthcheck, use service_started for depends_on

Healthcheck tools (wget/curl) are not reliably available in the
chromadb image. Removing the healthcheck and switching rag-server
depends_on to service_started avoids the unhealthy container error.

https://claude.ai/code/session_012gDnantBmFTWZGCiKyjazx

laptop_full_setup.sh

@@ -278,11 +278,6 @@ services:
     environment:
       - IS_PERSISTENT=TRUE
       - ANONYMIZED_TELEMETRY=FALSE
-    healthcheck:
-      test: ["CMD-SHELL", "curl -sf http://localhost:8000/api/v1/heartbeat || exit 1"]
-      interval: 15s
-      timeout: 5s
-      retries: 5
 
   # ── RAG Server — code-aware retrieval ──────────────────────────────────────
   rag-server:
@@ -312,7 +307,7 @@ services:
                uvicorn server:app --host 0.0.0.0 --port 8001"
     depends_on:
       chromadb:
-        condition: service_healthy
+        condition: service_started
       ollama:
         condition: service_healthy