feat(commands): unify chat commands (#275)

* Chat commands: registry, access groups, Carbon

* Chat commands: clear native commands on disable

* fix(commands): align command surface typing

* docs(changelog): note commands registry (PR #275)

---------

Co-authored-by: Peter Steinberger <steipete@gmail.com>

src/auto-reply/reply.directive.test.ts

@@ -512,7 +512,7 @@ describe("directive parsing", () => {
     await withTempHome(async (home) => {
       const storePath = path.join(home, "sessions.json");
       const ctx = {
-        Body: "please do the thing /verbose on",
+        Body: "please do the thing",
         From: "+1004",
         To: "+2000",
       };
@@ -546,6 +546,21 @@ describe("directive parsing", () => {
         };
       });
 
+      await getReplyFromConfig(
+        { Body: "/verbose on", From: ctx.From, To: ctx.To },
+        {},
+        {
+          agent: {
+            model: "anthropic/claude-opus-4-5",
+            workspace: path.join(home, "clawd"),
+          },
+          whatsapp: {
+            allowFrom: ["*"],
+          },
+          session: { store: storePath },
+        },
+      );
+
       const res = await getReplyFromConfig(
         ctx,
         {},
@@ -827,7 +842,7 @@ describe("directive parsing", () => {
     });
   });
 
-  it("uses model override for inline /model", async () => {
+  it("ignores inline /model and uses the default model", async () => {
     await withTempHome(async (home) => {
       const storePath = path.join(home, "sessions.json");
       vi.mocked(runEmbeddedPiAgent).mockResolvedValue({
@@ -867,8 +882,8 @@ describe("directive parsing", () => {
       expect(texts).toContain("done");
       expect(runEmbeddedPiAgent).toHaveBeenCalledOnce();
       const call = vi.mocked(runEmbeddedPiAgent).mock.calls[0]?.[0];
-      expect(call?.provider).toBe("openai");
-      expect(call?.model).toBe("gpt-4.1-mini");
+      expect(call?.provider).toBe("anthropic");
+      expect(call?.model).toBe("claude-opus-4-5");
     });
   });