Fixed dependencies, removed directional contexts, and prevent duplication from functions included in den.default.

[vic]

Fixes #84.

This PR removes the directional contexts fromHost and fromUser. Now people can include funcitons like:

den.default.includes = [
  ({ user, ...}: { nixos.some-array = [ user.name ]; })
];

And values are not duplicated now. Added test based on report from #84.

This also simplified a lot the number of contexts we have. Still have to update documentation about contexts.

[Copilot]

Pull Request Overview

This PR removes the directional context parameters (fromUser, fromHost, OS, HM) from the aspect system, simplifying the API and reducing boilerplate. The changes streamline how aspects receive and propagate context by using direct parameter patterns instead of directional indicators.

• Refactored core parametric functions to use direct context passing instead of directional wrappers
• Updated aspect functors to explicitly take and pass context types (OS, HM)
• Simplified example code by removing unused directional context parameters

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
templates/examples/modules/_example/ci/standalone-hm-special-args-osconfig.nix	Added ... parameter to accept additional context arguments
templates/examples/modules/_example/ci/one-os-package-per-user.nix	Removed OS and fromUser directional parameters and helper wrapper
templates/examples/modules/_example/ci/host-user-conditional-hm.nix	Removed HM directional parameter and helper wrapper, simplified conditional logic
templates/default/modules/aspects/eg/routes.nix	Simplified routing implementation by removing directional wrappers and using direct context application
nix/lib.nix	Reversed merge order in parametric.expands from attrs // ctx to ctx // attrs
modules/aspects/provides/user-shell.nix	Replaced exactly wrappers with direct parameter patterns and explicit parametric.atLeast
modules/aspects/provides/home-manager.nix	Updated to pass HM and host directly in context instead of nested directional structure
modules/aspects/dependencies.nix	Major refactor splitting dependencies into separate OS and HM paths without directional context indicators
modules/aspects/definition.nix	Updated aspect functors to explicitly take context types (HM/OS) and use new parametric patterns

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