fix: apply the namespace edits dropped from the task 0031 merge

The task 0031 commit moved the module files but a mis-staged `git add`
left the option-path rewrites out, so main declared the old namespaces
(`modules.claude-code`, `modules.gitea-axi`, `modules.pi`,
`modules.desktop.hyprlock`/`hypridle`) while CONTEXT.md and ADR 0004
already documented the new ones. Rewrite the paths in the moved and
in-place modules, the neogaia host, and the two live CLAUDE.md gotchas
so the code matches the recorded convention.

CLAUDE.md

@@ -40,7 +40,7 @@ The domain model (Host, Module, Skeleton, Auto-loader, Enable convention, overla
   That is what lets the `nyx-cache.chaotic.cx` binary cache hit instead of compiling the CachyOS kernel from source; the tradeoff is that chaotic packages do not see our `unstable`/`stable` overlays.
 - The remote is self-hosted Gitea (`git.alexion.dev`), and the forge CLI is `gitea-axi` rather than `tea`.
   `gitea-axi` resolves the repository from the `origin` remote and discovers credentials from a `tea` login whose host matches the remote, so both are implicit inside a checkout.
-  It is installed on `neogaia` by `modules.gitea-axi`, and verified: `gitea-axi` run from this checkout renders the `alexion/dotfiles` dashboard authenticated, so the claude-code `SessionStart` hook that runs it now resolves to a real binary rather than a missing one.
+  It is installed on `neogaia` by `modules.agents.tools.gitea-axi`, and verified: `gitea-axi` run from this checkout renders the `alexion/dotfiles` dashboard authenticated, so the claude-code `SessionStart` hook that runs it now resolves to a real binary rather than a missing one.
   The package wraps the binary so `git` and `tea` are reachable without being on `PATH`, while still preferring the operator's own where present.
   Credentials: `~/.config/tea/config.yml` holds a token-bearing login named `alexion`, which `gitea-axi` uses and which also opens pull requests directly with `nix run nixpkgs#tea -- pr create --login alexion --repo alexion/dotfiles --base main --head <branch> ...`.
   The `--repo` flag is required on that path, since `tea` resolves `origin` only for a login whose SSH host matches.
@@ -54,7 +54,7 @@ The domain model (Host, Module, Skeleton, Auto-loader, Enable convention, overla
   On this machine the two are provably distinct: the daemon presents `SHA256:2ysuBX0+Z6GbdCTujz5JHX6rqnJzIyWhYNrxdhhGwEM`, while pushes to `git.alexion.dev` authenticate with `SHA256:nEhHwtHDnLlsuFxyfp+cETgHUZ8xDMxaPVmYM5vuCkA`.
   Renaming host keys after user keys, or vice versa, is therefore always wrong.
 - `~/.claude/skills` is generated by home-manager with `recursive = true`, so the directories are real and writable but every leaf file is a read-only symlink into the store.
-  Editing a skill in place fails; its source is `modules/claude-code/skills/<name>/` here, applied by a rebuild.
+  Editing a skill in place fails; its source is `modules/agents/claude-code/skills/<name>/` here, applied by a rebuild.
   Creating a new file under `~/.claude/skills/` succeeds silently and is the trap — it stays outside the repo and reaches no other machine.
   Copying out of that tree needs `cp -rL` plus `chmod -R u+w`: a plain `cp -r` copies the symlinks, putting store paths into the destination, and dereferenced files keep the store's read-only mode.
 - `home-manager.users.<user>.home.file` is keyed by **absolute** path, not by a path relative to the home directory.

hosts/neogaia/default.nix

@@ -48,9 +48,9 @@
   modules.git.enable = true;
   modules.tmux.enable = true;
   modules.nvim.enable = true;
-  modules.claude-code.enable = true;
-  modules.gitea-axi.enable = true;
-  modules.pi.enable = true;
+  modules.agents.claude-code.enable = true;
+  modules.agents.tools.gitea-axi.enable = true;
+  modules.agents.pi.enable = true;
 
   modules.desktop.enable = true;
 

modules/agents/claude-code/claude-code.nix

@@ -8,11 +8,11 @@
 # the package and manages ~/.claude. Login credentials are left unmanaged so they
 # survive rebuilds.
 let
-  cfg = config.modules.claude-code;
+  cfg = config.modules.agents.claude-code;
   user = config.user.name;
 in
 {
-  options.modules.claude-code.enable = lib.mkEnableOption ''
+  options.modules.agents.claude-code.enable = lib.mkEnableOption ''
     Claude Code, Anthropic's CLI, configured via home-manager.
 
     Enabling this also widens sudo's credential cache, keying it per user rather

modules/agents/pi.nix

@@ -7,11 +7,11 @@
 # home-manager, which ships the package and manages ~/.pi/agent.
 # The login credential is left unmanaged, so it survives rebuilds.
 let
-  cfg = config.modules.pi;
+  cfg = config.modules.agents.pi;
   user = config.user.name;
 in
 {
-  options.modules.pi.enable = lib.mkEnableOption ''
+  options.modules.agents.pi.enable = lib.mkEnableOption ''
     Pi, a terminal coding agent, configured via home-manager'';
 
   config = lib.mkIf cfg.enable {

modules/agents/tools/gitea-axi.nix

@@ -8,11 +8,11 @@
 # That module also declares the Claude Code context when that harness is
 # enabled on the host; enabling this alone installs the CLI and nothing else.
 let
-  cfg = config.modules.gitea-axi;
+  cfg = config.modules.agents.tools.gitea-axi;
   user = config.user.name;
 in
 {
-  options.modules.gitea-axi.enable =
+  options.modules.agents.tools.gitea-axi.enable =
     lib.mkEnableOption "gitea-axi, an agent-ergonomic CLI for Gitea issues and pull requests";
 
   config = lib.mkIf cfg.enable {

modules/desktop/desktop.nix

@@ -11,8 +11,8 @@ in
   config = lib.mkIf cfg.enable {
     modules.desktop.clipboard.enable = lib.mkDefault true;
     modules.desktop.hyprland.enable = lib.mkDefault true;
-    modules.desktop.hyprlock.enable = lib.mkDefault true;
-    modules.desktop.hypridle.enable = lib.mkDefault true;
+    modules.desktop.hyprland.hyprlock.enable = lib.mkDefault true;
+    modules.desktop.hyprland.hypridle.enable = lib.mkDefault true;
     modules.desktop.login.enable = lib.mkDefault true;
     modules.desktop.mako.enable = lib.mkDefault true;
     modules.desktop.portals.enable = lib.mkDefault true;

modules/desktop/hyprland/hypridle.nix

@@ -7,7 +7,7 @@
 # Idle management: hypridle locks on idle, powers the displays off, and locks
 # before every suspend, so an unattended session always lands at hyprlock.
 let
-  cfg = config.modules.desktop.hypridle;
+  cfg = config.modules.desktop.hyprland.hypridle;
   user = config.user.name;
 
   hyprctl = "${config.programs.hyprland.package}/bin/hyprctl";
@@ -18,7 +18,7 @@ let
   lockCmd = "${pkgs.procps}/bin/pidof hyprlock || ${hyprlock}";
 in
 {
-  options.modules.desktop.hypridle = {
+  options.modules.desktop.hyprland.hypridle = {
     enable = lib.mkEnableOption "hypridle idle management";
 
     lockTimeout = lib.mkOption {

modules/desktop/hyprland/hyprlock.nix

@@ -6,7 +6,7 @@
 }:
 # The lock screen: hyprlock, a session-lock client whose surface the compositor owns, so it survives a crash of the locker rather than exposing the session.
 let
-  cfg = config.modules.desktop.hyprlock;
+  cfg = config.modules.desktop.hyprland.hyprlock;
   user = config.user.name;
 
   # The hyprlock this module installs, so the keybind and the idle daemon lock
@@ -14,7 +14,7 @@ let
   hyprlock = "${config.home-manager.users.${user}.programs.hyprlock.package}/bin/hyprlock";
 in
 {
-  options.modules.desktop.hyprlock.enable = lib.mkEnableOption "the hyprlock lock screen";
+  options.modules.desktop.hyprland.hyprlock.enable = lib.mkEnableOption "the hyprlock lock screen";
 
   config = lib.mkIf cfg.enable {
     home-manager.users.${user} = {