chore(agents): remove qwen-code

idols-ai and aquamarine stop preserving ~/.qwen; its existing data stays under /persistent until deleted by hand.

Assisted-by: DeepSeek Harness (claude-opus-5-5)

home/base/tui/agents/README.md

@@ -13,10 +13,10 @@ Markdown with no Nix dependency; this module only wires it into place.
 - `skills.nix`: links the global skills into `~/.agents/skills/<name>`, from pinned flake inputs and
   from `agents/skills/`; the inventory is
   [agents/skills/README.md](../../../../agents/skills/README.md).
-- `packages.nix`: agent CLIs (`codex`, `opencode`, `qwen-code`, `pi`) from the `llm-agents` flake
-  input, dsh from `nur-ryan4yin`, `pkgs.ctx7` for the `find-docs` skill, and `pkgs.mcp-grafana` for
-  the Grafana MCP server. Profile patches live in `~/.dsh/profiles/<name>/cordis.patch.yml`. See
-  [dsh.md](./dsh.md) for the layer order and the settings that bite.
+- `packages.nix`: agent CLIs (`codex`, `opencode`, `pi`) from the `llm-agents` flake input, dsh from
+  `nur-ryan4yin`, `pkgs.ctx7` for the `find-docs` skill, and `pkgs.mcp-grafana` for the Grafana MCP
+  server. Profile patches live in `~/.dsh/profiles/<name>/cordis.patch.yml`. See [dsh.md](./dsh.md)
+  for the layer order and the settings that bite.
 - `env.nix`: telemetry and auto-update opt-outs for the agents.
 
 ## Deployed rule targets

home/base/tui/agents/packages.nix

@@ -19,7 +19,6 @@ in
     # Agents
     agentPackages.codex
     opencode
-    agentPackages.qwen-code
     agentPackages.pi
     # dsh from nur-packages: llm-agents.nix's dsh cannot boot on nixpkgs node
     # (node-addon-require-builtin probe), this one shims it.

hosts/idols-ai/preservation.nix

@@ -178,12 +178,6 @@ in
         ".codex"
         ".dsh" # DeepSeek Harness
         ".pi"
-        # Qwen Code keeps settings, credentials, history, sessions, and logs
-        # under ~/.qwen; keep the whole directory private and persistent.
-        {
-          directory = ".qwen";
-          mode = "0700";
-        }
         ".config/opencode"
         ".local/share/opencode"
         ".local/state/opencode"

hosts/idols-aquamarine/preservation.nix

@@ -100,12 +100,6 @@ in
         ".codex"
         ".dsh" # DeepSeek Harness
         ".pi"
-        # Qwen Code keeps settings, credentials, history, sessions, and logs
-        # under ~/.qwen; keep the whole directory private and persistent.
-        {
-          directory = ".qwen";
-          mode = "0700";
-        }
         ".config/opencode"
         ".local/share/opencode"
         ".local/state/opencode"

outputs/x86_64-linux/tests/agent-profile/expected.nix

@@ -2,7 +2,6 @@
 let
   common = {
     agentsFromHome = true;
-    qwenInstalled = true;
     devToolsFromHome = true;
     nushellSecrets = false;
     githubSshRewrite = false;

outputs/x86_64-linux/tests/agent-profile/expr.nix

@@ -23,7 +23,6 @@ lib.genAttrs hosts (
   {
     # home role: home/linux/tui.nix
     agentsFromHome = hasPackage "codex" home.home.packages;
-    qwenInstalled = hasPackage "qwen-code" home.home.packages;
     devToolsFromHome = hasPackage "kubectl" home.home.packages;
     # ~/.secrets is synced to the desktops only; sourcing it would break nushell.
     nushellSecrets = home.modules.shell.secrets.enable;

outputs/x86_64-linux/tests/idols-ai-gpu/expected.nix

@@ -19,5 +19,4 @@
   wivrnImportsOpenXRToSteam = true;
   wivrnStatePreserved = true;
   adbStatePreserved = true;
-  qwenStatePreserved = true;
 }

outputs/x86_64-linux/tests/idols-ai-gpu/expr.nix

@@ -54,5 +54,4 @@ in
     cfg.environment.sessionVariables.PRESSURE_VESSEL_IMPORT_OPENXR_1_RUNTIMES == "1";
   wivrnStatePreserved = privatelyPreserved ".config/wivrn";
   adbStatePreserved = privatelyPreserved ".android";
-  qwenStatePreserved = privatelyPreserved ".qwen";
 }

outputs/x86_64-linux/tests/idols-aquamarine/expr.nix

@@ -102,7 +102,6 @@ in
       ".local/state/home-manager"
       ".local/state/nix/profiles"
       ".codex"
-      ".qwen"
       ".config/opencode"
     ];
   pythonInstalled = builtins.any (