fix: address review findings in plugin sync PR

- OpenClaw schedule_cmd: pass project as required positional arg
- OpenClaw schedule_cmd/unschedule_cmd: unpack Tuple[bool, str] return
- OpenClaw schedule_cmd: propagate failure status (return 1 on not ok)
- OpenClaw unschedule_cmd: pass project to avoid silent no-op
- OpenClaw --minute default: 17 (consistent with engine and MCP)
- harvest.py: move datetime import to module level

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

plugins/openclaw/slash_sleep.py

@@ -214,9 +214,10 @@ def schedule_cmd(hour: int, minute: int) -> int:
     except ImportError:
         print("ERROR: skillopt_sleep.scheduler not available — is SkillOpt-Sleep installed?")
         return 1
-    result = schedule(hour=hour, minute=minute)
-    print(result)
-    return 0
+    project = str(SKILL_DIR)
+    ok, msg = schedule(project, hour=hour, minute=minute)
+    print(msg)
+    return 0 if ok else 1
 
 
 def unschedule_cmd(all_projects: bool) -> int:
@@ -226,9 +227,10 @@ def unschedule_cmd(all_projects: bool) -> int:
     except ImportError:
         print("ERROR: skillopt_sleep.scheduler not available — is SkillOpt-Sleep installed?")
         return 1
-    result = unschedule(all_projects=all_projects)
-    print(result)
-    return 0
+    project = str(SKILL_DIR)
+    ok, msg = unschedule(project, all_projects=all_projects)
+    print(msg)
+    return 0 if ok else 1
 
 
 def cost() -> int:
@@ -291,7 +293,7 @@ def main():
     sub.add_parser("cost", help="estimate cost")
     p_schedule = sub.add_parser("schedule", help="install nightly cron entry")
     p_schedule.add_argument("--hour", type=int, default=3, help="hour (0-23)")
-    p_schedule.add_argument("--minute", type=int, default=0, help="minute (0-59)")
+    p_schedule.add_argument("--minute", type=int, default=17, help="minute (0-59)")
     p_unschedule = sub.add_parser("unschedule", help="remove cron entry")
     p_unschedule.add_argument("--all", dest="all_projects", action="store_true",
                                help="remove entries for all projects")

skillopt_sleep/harvest.py

@@ -17,6 +17,7 @@ from __future__ import annotations
 
 import json
 import os
+from datetime import datetime
 from typing import Any, Dict, Iterable, List, Optional
 
 from skillopt_sleep.types import SessionDigest
@@ -150,7 +151,6 @@ def _is_headless_replay(digest: "SessionDigest") -> bool:
     # Sub-3-second single-turn sessions are almost certainly programmatic.
     if digest.started_at and digest.ended_at:
         try:
-            from datetime import datetime
             fmt = "%Y-%m-%dT%H:%M:%S"
             start = datetime.strptime(digest.started_at[:19], fmt)
             end = datetime.strptime(digest.ended_at[:19], fmt)