Fix: Store drops immediately after each TLD (crash-safe)

- Drops are now stored in DB right after each TLD sync completes
- If process crashes, already synced TLDs' drops are preserved
- Temporarily exclude .org (too large, causes OOM)
- Show stored count in summary

backend/scripts/sync_all_zones.py

@@ -44,7 +44,9 @@ LOG_FILE = Path("/home/user/logs/zone_sync.log")
 COMPRESS_DOMAIN_LISTS = True
 
 # CZDS TLDs we have access to
-CZDS_TLDS = ["app", "dev", "info", "online", "org", "xyz"]
+# Note: .org is HUGE (~10M domains, 442MB gz) - requires special handling
+CZDS_TLDS = ["app", "dev", "info", "online", "xyz"]  # org temporarily excluded due to memory
+CZDS_TLDS_LARGE = ["org"]  # Process separately with streaming
 
 # Switch.ch AXFR config
 SWITCH_CONFIG = {
@@ -521,16 +523,34 @@ async def main():
     logger.info("\n📊 Initial storage check...")
     initial_storage = log_storage_stats()
     
-    all_drops = []
     results = []
+    total_drops_stored = 0
+    
+    # Helper to store drops immediately after each TLD
+    async def store_tld_drops(drops: list, tld: str):
+        nonlocal total_drops_stored
+        if not drops:
+            return 0
+        try:
+            session = await get_db_session()
+            stored = await store_drops_in_db(drops, session)
+            await session.close()
+            total_drops_stored += stored
+            logger.info(f"  💾 Stored {stored} .{tld} drops in database")
+            return stored
+        except Exception as e:
+            logger.error(f"  ❌ Failed to store .{tld} drops: {e}")
+            return 0
     
     # Sync CZDS TLDs (sequentially to respect rate limits)
     logger.info("\n📦 Syncing ICANN CZDS zone files...")
     for tld in CZDS_TLDS:
         result = await sync_czds_tld(tld)
         results.append(result)
-        if hasattr(result, 'drops'):
-            all_drops.extend(result.drops)
+        
+        # Store drops IMMEDIATELY after each TLD (crash-safe)
+        if hasattr(result, 'drops') and result.drops:
+            await store_tld_drops(result.drops, tld)
         
         # Rate limit: wait between downloads
         if tld != CZDS_TLDS[-1]:
@@ -542,19 +562,10 @@ async def main():
     for tld in ["ch", "li"]:
         result = await sync_switch_tld(tld)
         results.append(result)
-        if hasattr(result, 'drops'):
-            all_drops.extend(result.drops)
-    
-    # Store drops in database
-    if all_drops:
-        logger.info(f"\n💾 Storing {len(all_drops)} drops in database...")
-        try:
-            session = await get_db_session()
-            stored = await store_drops_in_db(all_drops, session)
-            await session.close()
-            logger.info(f"✅ Stored {stored} drops in database")
-        except Exception as e:
-            logger.error(f"❌ Failed to store drops: {e}")
+        
+        # Store drops IMMEDIATELY
+        if hasattr(result, 'drops') and result.drops:
+            await store_tld_drops(result.drops, tld)
     
     # Cleanup stray files
     logger.info("\n🧹 Cleaning up temporary files...")
@@ -587,7 +598,7 @@ async def main():
     
     logger.info("-" * 60)
     logger.info(f"  TOTAL: {total_domains:,} domains across {success_count}/{len(results)} TLDs")
-    logger.info(f"  DROPS: {total_drops:,} new drops detected")
+    logger.info(f"  DROPS: {total_drops:,} detected, {total_drops_stored:,} stored in DB")
     logger.info(f"  TIME:  {duration:.1f} seconds")
     
     # Final storage stats