Remove friendbot service

[leighmcculloch]

What

Remove friendbot service.

Why

It has moved to https://github.com/stellar/friendbot.

Merging

This should be merged after a successful deployment has taken place on the new repo.

For stellar/friendbot#4

[Copilot]

Pull Request Overview

This PR completely removes the friendbot service from the repository. The friendbot service was a REST API endpoint used to create and fund test accounts on the Stellar Test Network.

• Removes all friendbot service code, tests, and configuration files
• Removes friendbot Docker build configuration
• Updates dependency files to remove github.com/go-chi/chi/v5 and github.com/riandyrn/otelchi packages
• Removes friendbot build target from the root Makefile

Reviewed Changes

Copilot reviewed 18 out of 19 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
services/friendbot/main.go	Deleted main entry point and server configuration
services/friendbot/router_test.go	Deleted HTTP routing and IP logging tests
services/friendbot/init_friendbot.go	Deleted minion account initialization logic
services/friendbot/init_friendbot_test.go	Deleted minion creation tests
services/friendbot/internal/friendbot.go	Deleted core Bot payment delegation logic
services/friendbot/internal/friendbot_handler.go	Deleted HTTP request handler
services/friendbot/internal/friendbot_test.go	Deleted Bot payment tests
services/friendbot/internal/minion.go	Deleted Minion transaction creation and submission
services/friendbot/internal/minion_test.go	Deleted Minion concurrency tests
services/friendbot/internal/account.go	Deleted Account interface implementation
services/friendbot/loadtest/loadtest.go	Deleted load testing utility
services/friendbot/friendbot.cfg	Deleted configuration file
services/friendbot/docker/Dockerfile	Deleted Docker build configuration
services/friendbot/README.md	Deleted service documentation
services/friendbot/Makefile	Deleted service-specific build targets
services/friendbot/CHANGELOG.md	Deleted service changelog
go.mod	Removed chi/v5 and otelchi dependencies
go.sum	Removed dependency checksums
Makefile	Removed friendbot build target from root Makefile

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