feat: seed carries frozen pools.json into training workspace

app/harness/store.py

@@ -190,6 +190,9 @@ def init_seed(
     baseline_run_id: str,
     parent: str | None,
     description: str,
+    *,
+    pools_json: Path | None = None,
+    split_manifest: Path | None = None,
 ) -> Path:
     """在 store/seeds/<name> 写一个种子：权重 + baseline.db + seed.json。
 
@@ -202,6 +205,10 @@ def init_seed(
         baseline_run_id: 全量记录的 run_id，fresh 时注入 build_pools。
         parent: 来源（initial 为 None）。
         description: 人类可读说明。
+        pools_json: 可选，冻结切分 pools.json 源路径；提供时拷入 seed 目录，
+            供 fresh 训练时携带冻结切分进 workspace（见 init_workspace_from_seed）。
+        split_manifest: 可选，冻结切分 split_manifest.json 源路径；提供时拷入 seed
+            目录，供加载时校验 pools.json 内容指纹（pools_sha256）。
 
     返回:
         种子目录路径。
@@ -216,6 +223,10 @@ def init_seed(
     shutil.copytree(skills_dir, seed_dir / "skills")
     shutil.copytree(prompts_dir, seed_dir / "prompts")
     shutil.copy2(baseline_db, seed_dir / "baseline.db")
+    if pools_json is not None:
+        shutil.copy2(pools_json, seed_dir / "pools.json")
+    if split_manifest is not None:
+        shutil.copy2(split_manifest, seed_dir / "split_manifest.json")
     (seed_dir / "seed.json").write_text(
         json.dumps(
             {

app/harness/workspace.py

@@ -196,6 +196,13 @@ def init_workspace_from_seed(
     shutil.copytree(seed_dir / "prompts", workspace_dir / "prompts" / "v1")
     shutil.copy2(seed_dir / "baseline.db", workspace_dir / "harness.db")
 
+    seed_pools = seed_dir / "pools.json"
+    if seed_pools.exists():
+        shutil.copy2(seed_pools, workspace_dir / "pools.json")
+        seed_manifest = seed_dir / "split_manifest.json"
+        if seed_manifest.exists():
+            shutil.copy2(seed_manifest, workspace_dir / "split_manifest.json")
+
     logger.info("Workspace 从种子 '{}' 初始化完成: {}", seed_name, workspace_dir)
     return meta["baseline_run_id"]