Code cleanup

[djthorpe]

This PR modernizes the codebase by migrating from experimental packages to Go standard library equivalents and performs general code cleanup. The changes primarily update imports and fix time comparison logic while removing unused CLI components.

• Replaces golang.org/x/exp/maps with standard maps package
• Updates maps.Values() and maps.Keys() calls to use slices.Collect() wrapper
• Fixes time comparison using Equal() method instead of direct equality
• Removes extensive CLI-related code and dependencies

[Copilot]

Pull Request Overview

This PR modernizes the codebase by migrating from experimental packages to Go standard library equivalents and performs general code cleanup. The changes primarily update imports and fix time comparison logic while removing unused CLI components.

• Replaces golang.org/x/exp/maps with standard maps package
• Updates maps.Values() and maps.Keys() calls to use slices.Collect() wrapper
• Fixes time comparison using Equal() method instead of direct equality
• Removes extensive CLI-related code and dependencies

Reviewed Changes

Copilot reviewed 20 out of 26 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pkg/homeassistant/services.go	Updates imports and wraps maps.Values() with slices.Collect()
pkg/homeassistant/events.go	Formats import statement with package comment
pkg/homeassistant/README.md	Improves markdown formatting for URL references
go.mod	Removes golang.org/x/exp dependency and cleanup unused requires
cmd/api/homeassistant.go	Updates imports and wraps maps.Keys() with slices.Collect()
cmd/api/install.go	Fixes time comparison using Equal() method
etc/_cli/*.go	Removes entire CLI command infrastructure

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