Phase2 dry-run: pending A, probe, build-config client, gated task/add

Still default dry-run; ALLOW_LIVE_SUBMIT=0. Live gates closed.

scripts/build_config_dry.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+"""Generate config only; never creates a task or prints returned YAML/secrets."""
+import argparse
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+from src.build_config_client import build_config, BuildConfigError
+
+
+def main():
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--gpu-type', default='Sunrise_pt-200-x1')
+    parser.add_argument('--framework', default='vllm')
+    parser.add_argument('--task-type', default='text-generation')
+    args = parser.parse_args()
+    try:
+        yaml = build_config(args.gpu_type, args.framework, args.task_type)
+    except BuildConfigError as error:
+        print(str(error), file=sys.stderr)
+        return 1
+    print(f'configParams_source=build-config; generated YAML characters={len(yaml)}; no task submitted')
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())