feat: add mileage claim documentation

Author: jialin97

docs/integration/hrms/e-claim/app-usage.md

@@ -22,16 +22,22 @@ Prorated year claim limit will be applied to user whose Join Year = Current Year
 
 1. Draft the claim:
 
-   | Claim               | Description                                                   |
-   | ------------------- | ------------------------------------------------------------- |
-   | **Default Claim**   | Select expense type, claim date, amount and description       |
-   | **Receipt Scan**    | Select attachment of a receipt                                |
-   | **E-Invoice Claim** | Select attachment that includes a **VALID** E-Invoice QR code |
+   | Claim               | Description                                                       |
+   | ------------------- | ----------------------------------------------------------------- |
+   | **Default Claim**   | Select expense type, claim date, amount and description           |
+   | **Mileage**         | Select expense type, claim date, address/distance and description |
+   | **Receipt Scan**    | Select attachment of a receipt                                    |
+   | **E-Invoice Claim** | Select attachment that includes a **VALID** E-Invoice QR code     |
 
    - User can view the MTD limit, YTD limit and claim balance for each selected expenses type
+   - For Mileage Claim,
+      - Only expenses type where its UOM is "KM" can be used to apply Mileage Claim (refer [here](payroll-setup#maintain-claim))
+      - **_'Calculate from Address' switch_**: User can input origin and destination for Mileage Claim and system will calculate the approximate distance between the 2 address (Caluclated distance are not allowed to edit)
+      - **_Amount_** are not allowed to edit as it will be calculate based on the distance and rate  
+      - A map screenshot will be attached if user input origin and destination
    - For Receipt Scan, 
-     - Rescan: Resubmit attachment for reanalyzing if the scan result is incorrect
-     - Refresh Status: Refresh scan status after attachment is uploaded if scanning is still in progress
+     - **_'Rescan' button_**: Resubmit attachment for reanalyzing if the scan result is incorrect
+     - **_'Refresh Status' button_**: Refresh scan status after attachment is uploaded if scanning is still in progress
    - For E-Invoice Claim, post date, ref 1 and ref 2 will be filled in based on the E-Invoice and are not editable
    - User need to allow Camera and Photos (only for iOS device) permission in order to continue the service (refer [Android Permission](../permission.md#android-2) and [iOS Permission](../permission.md#ios-2))
 

docs/integration/hrms/e-claim/payroll-setup.md

@@ -8,6 +8,7 @@ description: An E Claim setup guide in SQL Payroll
 
 1. Navigate to Payroll > Maintenance > Maintain Claim…, select a Claim or Create New
 2. Set Yearly Limit and Monthly Limit
+3. Set UOM and Rate (for Mileage Claim)
 
     Option 1: Maintain Claim