fix: correct login() return value documentation in CLAUDE.md

- Fix return value from 2-tuple to 4-tuple (browser, context, page, main_frame)
- Correct function signature to match actual implementation
- Documentation now matches the actual API

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

CLAUDE.md

@@ -40,10 +40,10 @@ Note: Test scripts are responsible for loading environment variables and passing
 ### Module Structure
 
 **`utils/auth.py`** - Core authentication module (pure functions)
-- `login(url, username, password, page)` - Handles Yonyou BIP login with automatic force-login popup detection. Requires all parameters explicitly.
-- `logout(page)` - Performs logout with confirmation dialog handling
-- Callers are responsible for browser lifecycle management (context.close(), browser.close())
-- Returns tuple: `(page, main_frame)` where `main_frame` is the forwardFrame iframe
+- `login(playwright, username, password, url, headless, ignore_https_errors, verbose=True)` - Handles Yonyou BIP login with automatic force-login popup detection. Requires all parameters (playwright, username, password, url, headless, ignore_https_errors).
+- `logout(page)` - Performs logout with confirmation dialog handling.
+- Returns tuple: `(browser, context, page, main_frame)` where `main_frame` is the forwardFrame iframe.
+- Callers are responsible for browser lifecycle management (context.close(), browser.close()).
 
 **`tests/`** - Test suite
 - All test files must add `PROJECT_ROOT` to `sys.path` to import `utils` modules