Drop Ash related code in favor of the ash_backpex community project

[Flo0807]

No description provided.

[Copilot]

Pull request overview

This PR removes Ash integration from Backpex core in favor of a community-maintained project ash_backpex. The Ash adapter is replaced with a deprecation notice directing users to the community project.

Key changes:

• Removed Ash dependencies from mix.exs files
• Replaced Ash adapter implementation with deprecation notice
• Removed all Ash-related demo code (TicketLive, tests, factories, resources)
• Added migration to drop Ash tables and functions from demo database

Reviewed changes

Copilot reviewed 20 out of 22 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
mix.exs	Removed ash and ash_postgres dependencies
lib/backpex/adapters/ash.ex	Replaced implementation with deprecation notice pointing to community project
demo/mix.exs	Removed ash, ash_postgres, and smokestack dependencies
demo/lib/demo/repo.ex	Changed from AshPostgres.Repo to Ecto.Repo
demo/lib/demo/support.ex	Deleted Helpdesk domain module
demo/lib/demo/helpdesk/ticket.ex	Deleted Ticket resource
demo/lib/demo/ash_factory.ex	Deleted Ash factory
demo/lib/demo_web/live/ticket_live.ex	Deleted TicketLive resource
demo/lib/demo_web/router.ex	Removed tickets route
demo/lib/demo_web/components/layouts/admin.html.heex	Removed Helpdesk sidebar section
demo/test/demo_web/live/ticket_live_test.exs	Deleted TicketLive tests
demo/test/demo_web/browser/ticket_browser_test.exs	Deleted browser tests for tickets
demo/priv/repo/seeds.exs	Removed ticket seeding and AshFactory import
demo/priv/repo/migrations/20251122095850_drop_ash_tables.exs	Added migration to drop Ash tables/functions
demo/priv/resource_snapshots/repo/tickets/20241103111608.json	Deleted Ash resource snapshot
demo/priv/resource_snapshots/repo/extensions.json	Deleted Ash extensions configuration
demo/config/config.exs	Removed Ash and Spark configuration
demo/.formatter.exs	Removed Ash imports and Spark formatter plugin
.formatter.exs	Removed Ash imports
AGENTS.md	Updated documentation to reference community project

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