WIP: 任务附件——host seed-dir 与上传模块（未完，server/worker/console 待续）

host.py

@@ -1560,9 +1560,32 @@ def dispatch_from_branch(server, state, name, prompt, repo, dep_branch,
     return task, ""
 
 
+def _seed_worktree(cwd, seed_dir):
+    """把暂存附件拷进 worktree（dispatch/goal 共用，turn 开始前）。
+
+    seed_dir 是服务端写好的暂存目录（只含常规文件，无符号链接）：
+    顶层 .git 与符号链接一律跳过；子目录整树拷入，同名文件覆盖
+    （worktree 刚从 repo 建出来，覆盖即用户文件优先）。"""
+    import shutil
+    seed_dir = os.path.abspath(seed_dir)
+    if not os.path.isdir(seed_dir):
+        raise RuntimeError(f"seed-dir 不是目录: {seed_dir}")
+    for entry in sorted(os.listdir(seed_dir)):
+        if entry == ".git":
+            continue
+        src = os.path.join(seed_dir, entry)
+        dst = os.path.join(cwd, entry)
+        if os.path.islink(src):
+            continue
+        if os.path.isdir(src):
+            shutil.copytree(src, dst, dirs_exist_ok=True, symlinks=False)
+        else:
+            shutil.copy2(src, dst)
+
+
 def dispatch(server, state, name, prompt, repo, model, effort, sandbox,
              approval_policy, use_worktree=True, parent_task=None,
-             depends_on=None, priority=0, max_retries=0):
+             depends_on=None, priority=0, max_retries=0, seed_dir=None):
     if name in state["tasks"]:
         raise RuntimeError(f"task 已存在: {name}，先换名或 discard 它")
     if repo and not os.path.isabs(repo) and not os.path.exists(repo):
@@ -1575,6 +1598,13 @@ def dispatch(server, state, name, prompt, repo, model, effort, sandbox,
     branch = None
     if use_worktree and repo:
         cwd, branch = make_worktree(repo, name)
+    if seed_dir:
+        # 附件只能进 worktree：直接以 repo 为 cwd 时拷进去等于污染
+        # 仓库，必须 loud fail，绝不静默放行。
+        if not use_worktree or not repo or not cwd:
+            raise RuntimeError(
+                "seed-dir 需要 worktree，当前派发没有建 worktree")
+        _seed_worktree(cwd, seed_dir)
     thread_id = server.create_thread(cwd, model=model, sandbox=sandbox,
                                      approval_policy=approval_policy)
     task = {"name": name, "thread_id": thread_id, "cwd": cwd,
@@ -1905,6 +1935,8 @@ def main():
     p.add_argument("--name", required=True)
     p.add_argument("--task", required=True)
     p.add_argument("--repo", default=None)
+    p.add_argument("--seed-dir", default=None,
+                   help="附件暂存目录：派发时拷进 worktree 再跑 turn")
     p.add_argument("--no-worktree", action="store_true")
     p.add_argument("--depends-on", default=None,
                    help="逗号分隔的依赖任务名，依赖未完成前不跑")
@@ -1948,6 +1980,8 @@ def main():
     p = sub.add_parser("goal")
     p.add_argument("--name", required=True); p.add_argument("--task", required=True)
     p.add_argument("--repo", default=None)
+    p.add_argument("--seed-dir", default=None,
+                   help="附件暂存目录：派发时拷进 worktree 再跑 turn")
     p.add_argument("--verify", default=None,
                    help="验收命令；不传时走模型自决：模型在回合末尾"
                         "单独一行输出“目标已达成”即达标")
@@ -2277,7 +2311,8 @@ def main():
                             args.approval_policy,
                             use_worktree=not args.no_worktree,
                             depends_on=deps, priority=args.priority,
-                            max_retries=args.max_retries)
+                            max_retries=args.max_retries,
+                            seed_dir=args.seed_dir)
             # 生产教训：先落盘任务登记再跑 turn，中途被杀/超时后
             # 任务还在 host-state 里，可用 run 续跑；否则 turn 中断
             # 就等于任务丢了（2026-10-25 委派评审 300 秒超时实测）。
@@ -2538,7 +2573,8 @@ def main():
         elif args.cmd == "goal":
             task = dispatch(srv, state, args.name, args.task, args.repo,
                             args.model, args.effort, args.sandbox,
-                            args.approval_policy)
+                            args.approval_policy,
+                            seed_dir=args.seed_dir)
             save_state(args.state, state)
             run_goal_loop(srv, state, args.state, task, args.task,
                           args.verify, args.max_rounds, args.model,