Module paths 

Shared XDG path helpers (D18).

Every binary in the workspace (CLI, MCP, server) walks the same path precedence to find on-disk state: explicit env override first, then $XDG_CONFIG_HOME/midnight-manual/, then $HOME/.config/midnight-manual/. These helpers consolidate that walk so the CLI commands, the MCP server, and tests all agree on where files live.

Each helper takes a crate::config::ConfigEnv so tests can drive the resolver with a fake environment.

Files this module resolves:

• auth.toml — bearer / JWT store (see crate::auth_file).
• keys/<user_id>.private — Ed25519 signing-key seed for mnm login.
• users.toml — local user-store (CLI mutates; server reads as TOML body via env per FR-057, not as a path).

Functions

auth_file_path

Resolve the auth-file path (<config_home>/auth.toml).

config_home

Resolve the on-disk directory that holds CLI / server state.

keys_dir

Resolve the keypair-storage directory (<config_home>/keys/).

private_key_path

Resolve the on-disk path to a user’s signing-key seed (<config_home>/keys/<user_id>.private).

telemetry_marker_path

Resolve the persistent telemetry-opt-out marker path.

user_store_path

Resolve the user-store path on the CLI side.