Remove redundant step numbers from recipe instructions in UI and database

scripts/strip_step_numbers_db.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Strip leading step numbers from instructions in MariaDB to avoid duplicate numbers in the UI.
+"""
+import os
+import sys
+import re
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from app.database import get_connection
+
+sys.stdout.reconfigure(encoding='utf-8')
+
+STEP_REGEX = re.compile(r'^(?:Schritt\s*\d+[:.]?|\d+[\.\)\:])\s*', re.IGNORECASE)
+
+def clean_instructions_text(text: str) -> str:
+    if not text:
+        return ""
+    cleaned_lines = []
+    for line in text.split("\n"):
+        line_s = line.strip()
+        if not line_s:
+            continue
+        cleaned = STEP_REGEX.sub('', line_s)
+        cleaned_lines.append(cleaned)
+    return "\n".join(cleaned_lines)
+
+def main():
+    conn = get_connection()
+    cur = conn.cursor()
+    cur.execute("SELECT id, title, instructions FROM recipes ORDER BY id")
+    recipes = cur.fetchall()
+
+    updated_count = 0
+    total_lines_cleaned = 0
+
+    for r in recipes:
+        original = r['instructions'] or ""
+        cleaned = clean_instructions_text(original)
+        if cleaned != original:
+            cur.execute("UPDATE recipes SET instructions = %s WHERE id = %s", (cleaned, r['id']))
+            updated_count += 1
+            # count cleaned lines
+            for orig_line in original.split("\n"):
+                if STEP_REGEX.match(orig_line.strip()):
+                    total_lines_cleaned += 1
+
+    conn.commit()
+    conn.close()
+
+    print(f"Successfully cleaned instructions across {updated_count} of {len(recipes)} recipes.")
+    print(f"Total step number prefixes removed: {total_lines_cleaned}.")
+
+if __name__ == "__main__":
+    main()