fix: remove qdrant healthcheck, use wait-loop in our own containers

qdrant/qdrant:v1.9.0 does not ship curl or wget, so CMD healthchecks
always exit 127 (not found) and the container is immediately marked
unhealthy regardless of whether Qdrant is actually running.

Fix: remove the healthcheck from the qdrant service entirely. Instead,
rag-api and indexer now loop on `curl http://qdrant:6333/` (curl is
installed in our own python:3.11-slim image via the Dockerfile) before
starting the main process. Also removes the obsolete `version` key.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 # ─── Odoo 18 RAG Stack ────────────────────────────────────────────────────────
 # rag-api:8000  ──► qdrant:6333   (internal docker network)
 # rag-api       ──► miaai:11434   (direct outbound to Ollama)
@@ -28,20 +26,20 @@ services:
       QDRANT__LOG_LEVEL: INFO
     networks:
       - rag_net
-    healthcheck:
-      test: ["CMD", "curl", "-sf", "http://localhost:6333/"]
-      interval: 15s
-      timeout: 10s
-      retries: 5
-      start_period: 30s
+    # No healthcheck — qdrant image does not ship curl/wget.
+    # Dependent services use a wait-loop via our own image which has curl.
 
   rag-api:
     build: .
     container_name: odoo18-rag-api
     restart: unless-stopped
     depends_on:
-      qdrant:
-        condition: service_healthy
+      - qdrant
+    # Wait for Qdrant to accept HTTP before starting uvicorn
+    command: >
+      sh -c "until curl -sf http://qdrant:6333/ > /dev/null 2>&1;
+             do echo 'waiting for qdrant...'; sleep 3; done
+             && uvicorn api.main:app --host 0.0.0.0 --port 8000 --workers 2"
     ports:
       - "8000:8000"
     environment:
@@ -57,11 +55,6 @@ services:
       - "miaai:192.168.2.9"
     networks:
       - rag_net
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
 
   scraper:
     build: .
@@ -79,10 +72,13 @@ services:
     build: .
     container_name: odoo18-indexer
     profiles: ["indexer"]
-    command: python /app/indexer/indexer.py
+    # Wait for Qdrant before indexing
+    command: >
+      sh -c "until curl -sf http://qdrant:6333/ > /dev/null 2>&1;
+             do echo 'waiting for qdrant...'; sleep 3; done
+             && python /app/indexer/indexer.py"
     depends_on:
-      qdrant:
-        condition: service_healthy
+      - qdrant
     volumes:
       - ./data:/app/data
     extra_hosts: