Cleans up the Examples in the repository

[mdaneri]

Changes:

• Listener moved to localhost and port 8081 when possible,
• Import-Module generate an exception if fails
• Cleanup
• Tested
• Each Sample code include a .SYNOPSIS and .DESCRIPTION
• New autogenerate document page with all sample code under /docs/Getting-Started
• Pode.Build.ps1 automatically generate the sample code summary page
• New Pester test to check that any sample code includes .SYNOPSIS and .DESCRIPTION and .NOTE

Header Example

<#
.SYNOPSIS
    A sample PowerShell script to set up a Pode server and integrate with Redis for caching.
.DESCRIPTION
    This script sets up a Pode server listening on port 8081 with Redis integration for caching.
    It checks for the existence of the `redis-cli` command and sets up a Pode server with routes
    that demonstrate caching with Redis.
.NOTES
    Author: Pode Team
    License: MIT License
#>

[pchote]

The suggestion in #6515 isn't really feasible: the domain index doesn't know about buildings partitioning off areas.

A simpler fix is to put impassible map props in these bad cells on a map-by-map basis.

[Mailaender]

This was discovered on http://resource.openra.net/maps/13001/ Not a fan of invisible walls and working it around on a map-by-map basis. As the distance to the MCV is small, maybe a real pathing check could be added prior to spawn without effecting performance too much.

[RoosterDragon]

We now have the building blocks to make this possible.

Pathfinder exposes a PathExistsForLocomotor method that currently checks only terrain, but we could introduce another one that checks for the (subset of) immovable actors that hierarchicalPathFindersBlockedByImmovableByLocomotor knows about. https://github.com/OpenRA/OpenRA/blob/fe35c42eadcfd6fb7b05eb3df28207b7981b450b/OpenRA.Mods.Common/Traits/World/PathFinder.cs#L245-L259

Then we can generate some candidate locations (e.g. area around the MCV) and filter to only those with a reachable path, even taking the immovable actors into account. The check is quite cheap so could be applied to #6515 as well.