refactor: single predict.py entrypoint (production + CLI), archive experiments

archive/check_20_aug.py

@@ -0,0 +1,8 @@
+import sqlite3
+conn = sqlite3.connect('/opt/jetson-counter/jetson_counter.db')
+cur = conn.cursor()
+cur.execute("SELECT id, counting_date, batch_number, count, start_time, end_time FROM batches WHERE counting_date = '2026-08-20' AND batch_number >= 25 ORDER BY batch_number ASC")
+rows = cur.fetchall()
+for r in rows:
+    print(r)
+conn.close()