fix: 4 additional release-consistency findings

- Disable healthcheck on probe compose services (no HTTP server)
- Remove stale "(Phase 4)" comment from dev compose
- Add data/ to .gitignore (compose volume creates deploy/data)
- Clarify -db-type flag help text (sqlite or postgres)

deploy/docker-compose.dev.yml

@@ -13,7 +13,7 @@ services:
       - UPTOP_DB_TYPE=postgres
       - UPTOP_DB_DSN=postgres://devuser:devpass@postgres:5432/uptop_dev?sslmode=disable
       
-      # --- Web Server Configuration (Phase 4) ---
+      # --- Web Server Configuration ---
       - UPTOP_HTTP_PORT=8080
       - UPTOP_STATUS_ENABLED=true
       - UPTOP_STATUS_TITLE=Dev Infrastructure Status

deploy/docker-compose.probe.yml

@@ -14,6 +14,8 @@ services:
 
   probe-us-east:
     image: lerkolabs/uptop:latest
+    healthcheck:
+      disable: true
     environment:
       - UPTOP_CLUSTER_MODE=probe
       - UPTOP_NODE_ID=us-east-1
@@ -26,6 +28,8 @@ services:
 
   probe-eu-west:
     image: lerkolabs/uptop:latest
+    healthcheck:
+      disable: true
     environment:
       - UPTOP_CLUSTER_MODE=probe
       - UPTOP_NODE_ID=eu-west-1