refactor(welcome): reorganize service card layout

- move extra info from header to bottom section with credentials
- display links (docs, dashboard, admin, ui) as compact "Link" buttons
- move password toggle button to left of masked value
- add python runner mount/entry info to data generation
- remove redundant postgresus note
- reduce vertical spacing in bottom section

scripts/generate_welcome_page.sh

@@ -93,9 +93,7 @@ fi
 if is_profile_active "postgresus"; then
     SERVICES_ARRAY+=("    \"postgresus\": {
       \"hostname\": \"$(json_escape "$POSTGRESUS_HOSTNAME")\",
-      \"credentials\": {
-        \"note\": \"Uses PostgreSQL credentials from .env\"
-      },
+      \"credentials\": {},
       \"extra\": {
         \"pg_host\": \"postgres\",
         \"pg_port\": \"${POSTGRES_PORT:-5432}\",
@@ -414,6 +412,8 @@ if is_profile_active "python-runner"; then
         \"note\": \"Internal service only\"
       },
       \"extra\": {
+        \"mounted_dir\": \"./python-runner -> /app\",
+        \"entry_file\": \"/app/main.py\",
         \"logs_command\": \"docker compose -p localai logs -f python-runner\"
       }
     }")