Fix bugs and improve robustness of report fetching

- Fix missing 'import sys' in get_report.py that caused a NameError
  on the credential-check error path
- Fix indentation of the per-report print statement in
  report_json_down.py so it prints for every report, not just the
  last one per date
- Replace hardcoded X-ENROLLMENT header value with dynamic extraction
  from selenium-wire intercepted requests
- Replace fragile time.sleep() calls with WebDriverWait so the script
  waits for actual page/login readiness rather than fixed delays
- Remove album_json_down.py, a Windows-only legacy script inherited
  from upstream that was never used in this fork

get_report.py

@@ -1,12 +1,14 @@
 #!/usr/bin/env python3
 
 import os
-import time
+import sys
 import re
 import requests
 from dotenv import load_dotenv
 from selenium.webdriver.common.by import By
 from selenium.webdriver.chrome.options import Options
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
 from seleniumwire import webdriver
 
 load_dotenv()
@@ -27,6 +29,13 @@ def extract_child_id_from_requests(requests) -> str | None:
             return match.group(1)
     return None
 
+def extract_enrollment_from_requests(requests) -> str | None:
+    """Extract the X-ENROLLMENT header value from intercepted API requests."""
+    for request in requests:
+        if '/api/' in request.url and request.headers.get('X-ENROLLMENT'):
+            return request.headers['X-ENROLLMENT']
+    return None
+
 # Use headless browser if you don't need to see it
 chrome_options = Options()
 chrome_options.add_argument("--headless=new")
@@ -35,24 +44,34 @@ chrome_options.add_argument("--no-sandbox")
 driver = webdriver.Chrome(options=chrome_options)
 driver.get(login_url)
 
-# Wait for page to load
-time.sleep(2)
+# Wait for login form to be ready
+wait = WebDriverWait(driver, 30)
+wait.until(EC.element_to_be_clickable((By.NAME, "username")))
 
 # Fill in login form
 driver.find_element(By.NAME, "username").send_keys(USERNAME)
 driver.find_element(By.NAME, "password").send_keys(PASSWORD)
 driver.find_element(By.CSS_SELECTOR, "button[type='submit']").click()
 
-# Wait for login to process (adjust if needed)
-time.sleep(4)
+# Wait until the browser makes an authenticated API call (child reports endpoint)
+wait.until(lambda d: extract_child_id_from_requests(d.requests) is not None)
 
 child_id = extract_child_id_from_requests(driver.requests)
+enrollment = extract_enrollment_from_requests(driver.requests)
 report_url = f"https://www.kidsnote.com/api/v1_2/children/{child_id}/reports/?page_size=5000"
 
 # Extract cookies
 cookies = driver.get_cookies()
 driver.quit()
 
+if not child_id:
+    print("Error: could not determine child ID from intercepted requests.")
+    sys.exit(1)
+
+if not enrollment:
+    print("Error: could not extract X-ENROLLMENT header from intercepted requests.")
+    sys.exit(1)
+
 with requests.Session() as session:
     # Convert cookies for requests
     for cookie in cookies:
@@ -72,7 +91,7 @@ with requests.Session() as session:
         "Sec-Fetch-Mode": "cors",
         "Sec-Fetch-Site": "same-origin",
         "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0",
-        "X-ENROLLMENT": "16417613",
+        "X-ENROLLMENT": enrollment,
     }
 
     report_response = session.get(report_url, headers=headers)