docs: align README, DEVELOPMENT guide, Index and skills with Syncfusion.Blazor.Toolkit 2.0 API

.github/DEVELOPMENT.md

@@ -19,7 +19,7 @@ This page contains the steps to build and run the Syncfusion Toolkit for Blazor
 3. Run these commands:
     ```dotnetcli
     dotnet restore
-    dotnet build ./Syncfusion.Blazor.Toolkit.slnx
+    dotnet build ./src/Syncfusion.Blazor.Toolkit.slnx
     ```
 
 ### Release sanity check (local)

.github/Index.md

@@ -48,7 +48,7 @@ The documents referenced below contain project information related to licensing,
 
 ## Performance Documentation
 
-- [evidences/performance/virtualization-strategy.md](./evidences/performance/virtualization-startegy.md)
+- [evidences/performance/virtualization-strategy.md](./evidences/performance/virtualization-strategy.md)
   - Virtualization approach and rationale.
 
 - [evidences/performance/render-tree-efficiency.md](./evidences/performance/render-tree-efficiency.md)

.github/skills/syncfusion-blazor-toolkit-buttons/SKILL.md

@@ -77,7 +77,7 @@ Re-rendering also fights the awaited continuations.
 
 **Correct:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 
 <SfButton OnClick="@SaveAsync">Save</SfButton>
 @code {
@@ -107,7 +107,7 @@ won't catch "user selected nothing" unless you write a custom validator.
 
 **Correct:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 
 <EditForm Model="editor">
@@ -121,7 +121,7 @@ won't catch "user selected nothing" unless you write a custom validator.
 </EditForm>
 
 @code {
-    private void SelectionChanged(Syncfusion.Blazor.Toolkit.Buttons.SelectedItemsChangedEventArgs e)
+    private void SelectionChanged(Syncfusion.Blazor.Toolkit.SelectedItemsChangedEventArgs e)
     {
         editor.Selection = e.SelectedIndexes; // not empty after a click
     }
@@ -143,7 +143,7 @@ fires two navigations. ARIA reports two controls on one element.
 
 **Correct:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 
 <a href="/detail/42" role="link">
     <SfButton Content="Open"
@@ -171,7 +171,7 @@ flag itself.
 
 **Correct:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 
 <SfButton Disabled="@_isProcessing" OnClick="SubmitAsync">Submit</SfButton>
 @code {
@@ -193,7 +193,7 @@ a wrapping `<SfSpinner>` overlay (see
 ## Minimal Example
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 
 <SfButton Content="Save"
           IsPrimary="true"

.github/skills/syncfusion-blazor-toolkit-buttons/references/button-fundamentals.md

@@ -25,7 +25,7 @@ The Syncfusion button component automatically handles hover and pressed states t
 
 > **Note:** For button components with icons or enum values like `IconPosition` and `ButtonType`, add the buttons namespace to your page or component:
 > ```razor
-> @using Syncfusion.Blazor.Toolkit.Buttons
+> @using Syncfusion.Blazor.Toolkit
 > ```
 
 ## Disabled State

.github/skills/syncfusion-blazor-toolkit-buttons/references/getting-started.md

@@ -50,7 +50,7 @@ In `_Imports.razor`, add:
 
 For button components with icons or enum values like `IconPosition`, add the buttons namespace to your page or component:
 ```razor
-@using Syncfusion.Blazor.Toolkit.Buttons
+@using Syncfusion.Blazor.Toolkit
 ```
 
 ## First Button Component
@@ -225,7 +225,7 @@ The application starts at `https://localhost:7145` (or similar port).
 ### Issue 1: Button Not Rendering
 **Symptom:** No button appears on page
 **Solution:** 
-- Verify `@using` statement includes `Syncfusion.Blazor.Toolkit.Buttons`
+- Verify `@using` statement includes `Syncfusion.Blazor.Toolkit`
 - Check that services are registered in `Program.cs`
 - Ensure CSS file is imported in layout
 

.github/skills/syncfusion-blazor-toolkit-calendars/SKILL.md

@@ -85,7 +85,7 @@ at 19:00 (Jan 1 local = 00:00 UTC) sees "Dec 31 disabled" — wrong.
 side:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime?"
             EnableUtc="true"
@@ -132,7 +132,7 @@ private void OnCell(RenderDayCellEventArgs args)
 
 **Bad:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
               @bind-Value="@_date"
@@ -143,7 +143,7 @@ private void OnCell(RenderDayCellEventArgs args)
 **Correct:** use `@bind-Value:after` (.NET 8+) for post-commit logic:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
               @bind-Value="@_date"
@@ -187,7 +187,7 @@ date on click instead of keeping a timer running.
 
 **Correct:**
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime?"
             EnableUtc="true"
@@ -205,7 +205,7 @@ date on click instead of keeping a timer running.
 ## Minimal Example
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
               Placeholder="Select a date"

.github/skills/syncfusion-blazor-toolkit-calendars/references/calendar.md

@@ -188,7 +188,7 @@ Control the calendar view display and navigation:
 
 <!-- Specify week rule -->
 @using System.Globalization
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     WeekNumber="true"
@@ -224,7 +224,7 @@ Control the calendar view display and navigation:
 | `RemoveDatesAsync(DateTime[] dates)` | `Task` | Removes dates from selection in multi-selection mode |
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     ValueChange="@OnValueChanged"

.github/skills/syncfusion-blazor-toolkit-calendars/references/datepicker.md

@@ -143,7 +143,7 @@ Selected date: @selectedDate?.ToString("MMM dd, yyyy")
 The calendar supports disabling specific dates via the `DayCellRendering` event:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
     DayCellRendering="@OnDayCellRendering">
@@ -262,7 +262,7 @@ The calendar supports disabling specific dates via the `DayCellRendering` event:
 
     private void OnFocusHandler(FocusEventArgs args)
     {
-        Console.WriteLine("Focused"); // use Syncfusion.Blazor.Toolkit.Calendars.FocusEventArgs if you face ambiguous reference error
+        Console.WriteLine("Focused"); // use Syncfusion.Blazor.Toolkit.FocusEventArgs if you face ambiguous reference error
     }
 
     private void OnBlurHandler(BlurEventArgs args)
@@ -347,7 +347,7 @@ The calendar supports disabling specific dates via the `DayCellRendering` event:
 ### With EditForm
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 
 <EditForm Model="@model" OnValidSubmit="@HandleSubmit">

.github/skills/syncfusion-blazor-toolkit-calendars/references/events-binding.md

@@ -135,7 +135,7 @@ DatePicker, DateTimePicker, and TimePicker support popup events:
 ### EditForm and DataAnnotations
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 
 <EditForm Model="@model" OnValidSubmit="@HandleSubmit">
@@ -232,7 +232,7 @@ DatePicker, DateTimePicker, and TimePicker support popup events:
 ### Multiple Components Coordination
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
     ValueChange="@OnStartDateChanged"
@@ -262,7 +262,7 @@ DatePicker, DateTimePicker, and TimePicker support popup events:
 ### Complete Example with Multiple Features
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 
 <EditForm Model="@booking" OnValidSubmit="@SubmitBooking">

.github/skills/syncfusion-blazor-toolkit-calendars/references/features.md

@@ -74,7 +74,7 @@ Calendar components support standard date format strings:
 
 ### Min and Max Dates
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
     Min="@minDate"
@@ -91,7 +91,7 @@ Calendar components support standard date format strings:
 Disable specific days using the `DayCellRendering` event:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     DayCellRendering="@DisableWeekends">
@@ -112,7 +112,7 @@ Disable specific days using the `DayCellRendering` event:
 
 ### Custom Validation
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfDatePicker TValue="DateTime?"
     ValueChange="@ValidateDate">

.github/skills/syncfusion-blazor-toolkit-calendars/references/getting-started.md

@@ -35,7 +35,7 @@ Ensure `Syncfusion.Blazor.Toolkit` is referenced in your project file:
 Add the following to your `_Imports.razor` or place the same @using directive at the top of a specific Razor page if you only need it locally.:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 ```
 
 ### 3. Register Services (if required)
@@ -141,7 +141,7 @@ This calendar starts in the decade view (showing a grid of years) and only allow
 Use the `DayCellRendering` event to disable dates:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     DayCellRendering="@DisableSundays">

.github/skills/syncfusion-blazor-toolkit-calendars/references/timepicker.md

@@ -233,7 +233,7 @@ Enable strict mode to validate and reset invalid entries:
 
 @code {
     private string _triggeredEvent = string.Empty;
-	public void BlurHandler(Syncfusion.Blazor.Toolkit.Calendars.BlurEventArgs args)
+	public void BlurHandler(Syncfusion.Blazor.Toolkit.BlurEventArgs args)
 	{
 	    _triggeredEvent = "Blur event is triggered";
 	}
@@ -244,7 +244,7 @@ Enable strict mode to validate and reset invalid entries:
 	    _triggeredEvent = "ValueChange event is triggered";
 	}
 
-	public void FocusHandler(Syncfusion.Blazor.Toolkit.Calendars.FocusEventArgs args)
+	public void FocusHandler(Syncfusion.Blazor.Toolkit.FocusEventArgs args)
 	{
 	    _triggeredEvent = "Focus event is triggered";
 	}
@@ -303,7 +303,7 @@ Enable strict mode to validate and reset invalid entries:
 ## Form Integration
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 
 <EditForm Model="@model" OnValidSubmit="@HandleSubmit">

.github/skills/syncfusion-blazor-toolkit-calendars/references/troubleshooting.md

@@ -125,7 +125,7 @@ class BookingModel
 Ensure the following namespaces are included at the top of the Razor page:
 
 ```razor
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 @using System.ComponentModel.DataAnnotations
 ```
 
@@ -176,7 +176,7 @@ Ensure the following namespaces are included at the top of the Razor page:
 1. **Use DayCellRendering event for custom disabling:**
 ```razor
 <!-- Use DayCellRendering to disable specific dates -->
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     DayCellRendering="@DisableWeekends">
@@ -460,7 +460,7 @@ Open DevTools (F12) on mobile or use remote debugging to check for JavaScript er
 1. **Use Min/Max to restrict range:**
 ```razor
 <!-- Large ranges can slow rendering -->
-@using Syncfusion.Blazor.Toolkit.Calendars
+@using Syncfusion.Blazor.Toolkit
 
 <SfCalendar TValue="DateTime"
     Min="@minDate"