fix: clean output dir per run, fix cron inline comment, clarify volume placeholder

- executor.py: wipe person output dir before each run so stale crops
  from previous runs don't accumulate on disk
- compose.yml: move inline comment off CRON_SCHEDULE value (croniter
  would parse the comment text as part of the expression)
- compose.yml: add note clarifying <pool> placeholder in volume paths

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

compose.yml

@@ -25,10 +25,12 @@ services:
 
       # ── Scheduling ──
       # Cron expression (unset = run once and exit)
-      - CRON_SCHEDULE=0 3 * * 0    # Every Sunday at 3 AM
-      # - CRON_SCHEDULE=0 3 1 * *  # 1st of every month at 3 AM
-      # - CRON_SCHEDULE=*/30 * * * *  # Every 30 minutes (testing)
+      # Every Sunday at 3 AM:
+      - CRON_SCHEDULE=0 3 * * 0
+      # - CRON_SCHEDULE=0 3 1 * *
+      # - CRON_SCHEDULE=*/30 * * * *
     volumes:
+      # Replace <pool> with your TrueNAS pool name, e.g. /mnt/tank/if-curator/...
       - /mnt/<pool>/if-curator/models:/models
       - /mnt/<pool>/if-curator/embeddings:/app/.if_cache
       - /mnt/<pool>/if-curator/output:/app/output

if_curator/executor.py

@@ -2,6 +2,7 @@
 
 import logging
 import os
+import shutil
 from io import BytesIO
 from urllib.parse import quote
 
@@ -89,7 +90,9 @@ def execute_jobs(jobs: list[dict]) -> None:
 
             job_task = progress.add_task(f"Processing {name}...", total=len(assets))
             person_dir = os.path.join(Config.OUTPUT_DIR, name)
-            os.makedirs(person_dir, exist_ok=True)
+            if os.path.isdir(person_dir):
+                shutil.rmtree(person_dir)
+            os.makedirs(person_dir)
 
             # Track filename → asset_id mapping for upload dedup
             asset_map: dict[str, str] = {}