Feature: add Week Start Day in workspace settings for Analytics report options This Week and Last Week

## New Feature

### Week Start Day Setting in Workspace Settings

You can now configure which day of the week your analytics treat as the **start of the week** — directly affecting the **"This Week"** and **"Last Week"** date range filters across all Analytics reports.

#### What's New
- 📅 **New setting: Week Start Day** — found under Workspace Settings → Agent Office Hours section
- 🗓 Choose any day (Monday–Sunday) as your week's anchor day
- 📊 Immediately affects the **"This Week"** and **"Last Week"** date range options throughout Analytics reports
- 🌏 Works in conjunction with your workspace timezone setting

#### How to Use
1. Go to **Workspace Settings** in the left sidebar
2. Scroll down to the **Week Start Day** section
3. Select your preferred start day from the dropdown (default: **Monday**)
4. Click **Save**
5. Analytics reports using **"This Week"** or **"Last Week"** filters will now calculate ranges from your chosen start day

#### Why It Matters
- Teams operating on a Sunday–Saturday work week (common in the US and Middle East) can now align analytics to their actual business week
- Ensures "This Week" and "Last Week" comparisons are consistent with internal reporting standards
- Removes ambiguity when reviewing agent performance and conversation reports across different regional teams

> 👉 Located at: **Workspace Settings → Week Start Day** (near Agent Office Hours)