Add task-first GenSim action and orchestration pipeline

embodichain/__main__.py

@@ -56,6 +56,11 @@ class Command:
         target="embodichain.gen_sim.scene_engine.cli.start:main",
         help="Generate a scene export from an input image using gen_sim/.env.",
     ),
+    Command(
+        name="task-engine",
+        target="embodichain.gen_sim.task_engine.cli:main",
+        help="Run a complete cross-engine task workflow.",
+    ),
     Command(
         name="preview-scene",
         target="embodichain.gen_sim.scene_engine.cli.preview:main",

embodichain/gen_sim/action_engine/__init__.py

@@ -0,0 +1,50 @@
+# ----------------------------------------------------------------------------
+# Copyright (c) 2021-2026 DexForce Technology Co., Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ----------------------------------------------------------------------------
+
+"""Capability-driven planning and live execution for generated simulations.
+
+Action Engine deliberately exposes a small public surface. Natural-language
+goals become a typed TaskSpec, deterministic planning lowers them into a
+coordinate-free SeedGraph, and the runtime grounds that graph only against live
+simulator state.
+"""
+
+from __future__ import annotations
+
+from .unbound import (
+    UNBOUND_ACTION_PLAN_SCHEMA,
+    UnboundActionPlan,
+    build_unbound_action_plan,
+    validate_unbound_action_plan,
+)
+
+from .protocol import (
+    ACTION_ENGINE_CONFIG_SCHEMA,
+    ACTION_ENGINE_ENV_ID,
+    EXECUTION_PROGRAM_SCHEMA,
+    TASK_AGENT_SCHEMA,
+)
+
+__all__ = [
+    "ACTION_ENGINE_CONFIG_SCHEMA",
+    "ACTION_ENGINE_ENV_ID",
+    "EXECUTION_PROGRAM_SCHEMA",
+    "TASK_AGENT_SCHEMA",
+    "UNBOUND_ACTION_PLAN_SCHEMA",
+    "UnboundActionPlan",
+    "build_unbound_action_plan",
+    "validate_unbound_action_plan",
+]