docs(FR-2571): add Allowed Client IPs field to My Account dialog documentation (#6631)

Resolves #6675 (FR-2571)

Documents the **Allowed client IPs** field in the My Account dialog across all supported manual languages (EN, KO, JA, TH), and adds missing login-related screenshots referenced by the login documentation.

## Changes

- Added **Allowed client IPs** field documentation (CIDR examples, current-client-IP display, warning behavior) to the My Account section in all 4 languages
- Restored **Original password** field documentation (conditionally shown when server does not support V2 user update API) in all four languages
- Added language-specific screenshot assets `signout_button.png` and `forgot_password_panel.png` referenced from the login documentation
- Fixed Thai note about V2 API availability (unified to one line, translated "user update" to Thai)

**Checklist:**

- [x] Documentation

Author: nowgnuesLee

packages/backend.ai-webui-docs/SCREENSHOT-GUIDELINES.md

@@ -51,10 +51,12 @@ Standards for capturing, naming, and maintaining screenshots in the Backend.AI W
 - Avoid showing personal information, real email addresses, or API keys
 - Clear the browser address bar of internal/development URLs if visible
 - Use light theme as the default (unless documenting dark mode features)
+- **Always capture in English** regardless of which language directory the screenshot will be saved to. Switch the UI language to English before capturing, then copy the same screenshot to all language directories (`en/`, `ko/`, `ja/`, `th/`)
 
 ### Focused Cropping
 
 - **Prefer element-level screenshots over full-page captures** when documenting a specific feature or interaction
+- **For modals and dialogs: capture only the modal element itself**, not the full page. Use the modal's DOM element as the screenshot target (e.g., `.ant-modal-wrap .ant-modal`, `[role="dialog"]`)
 - Use `ref` parameter in `browser_take_screenshot` to capture only the relevant element (e.g., a modal, a toolbar section, a specific panel)
 - Full-page captures are appropriate for page overview screenshots, but for feature-specific documentation, crop to the relevant area so users can clearly identify what is being described
 - Include just enough surrounding context for users to orient themselves

packages/backend.ai-webui-docs/src/en/header/header.md

@@ -103,25 +103,35 @@ Below the user information, the following action items are available.
 
 ### My Account
 
-If you click `My Account`, the following dialog appears.
+If you click `My Account`, the My Account Information dialog appears.
 
 ![](../images/my_account_information.png)
 
-Each item has the following meaning. Enter the desired value and click the `Update` button to update the user
-information.
+Each item has the following meaning. Enter the desired value and click the
+`Update` button to update your information.
 
 - **Full Name**: User's name (up to 64 characters).
-- **Original password**: Original password. Click the right view button to see the
-  input contents.
+- **Original password**: Your current password. This field is shown only when
+  the server does not support the V2 user update API, and you must enter it
+  when setting a new password on such servers.
 - **New password**: New password (8 characters or more containing at least 1
-  alphabet, number, and symbol). Click the right view button to see the input
-  contents.
+  alphabet, number, and symbol). Click the eye icon to reveal the input.
 - **New password (again)**: Re-enter the new password for confirmation.
-- **2FA Enabled**: 2FA activation. The user needs to enter the OTP code when logging in if it is checked.
+- **Allowed client IPs**: Restrict login access to specific IP addresses or CIDR
+  ranges. Enter one or more IP addresses or CIDR notations (e.g.,
+  `10.20.30.40`, `10.20.30.0/24`). Below the field, your current client IP
+  address is displayed with a copy button for convenience. If the configured
+  list does not include your current IP, a warning is shown.
+- **2FA Enabled**: Enable or disable two-factor authentication. When enabled,
+  you must enter an OTP code at login.
 
+:::note
+The **Allowed client IPs** field is available when the server supports the V2
+user update API.
+:::
 
 :::note
-Depending on the plugin settings, the `2FA Enabled` column might be invisible.
+Depending on the plugin settings, the `2FA Enabled` field might not be visible.
 In that case, please contact the administrator of your system.
 :::
 

packages/backend.ai-webui-docs/src/en/images/admin_model_card_list.png

@@ -790,8 +790,6 @@ Click the `Create Model Card` button to open the creation modal. Fill in the fol
 - **VFolder** (required): The storage folder containing the model files.
 - **Access Level**: Set to `Internal` (visible within the domain) or `Public` (visible to all).
 
-![](../images/admin_model_card_modal.png)
-
 #### Editing a Model Card
 
 Click the edit icon in the **Controls** column to modify an existing model card. The edit modal opens with previously entered fields already filled in.