feat(cli): add client commands and home-based local runtime defaults

cli/src/__tests__/context.test.ts

@@ -0,0 +1,70 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+import {
+  defaultClientContext,
+  readContext,
+  setCurrentProfile,
+  upsertProfile,
+  writeContext,
+} from "../client/context.js";
+
+function createTempContextPath(): string {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "paperclip-cli-context-"));
+  return path.join(dir, "context.json");
+}
+
+describe("client context store", () => {
+  it("returns default context when file does not exist", () => {
+    const contextPath = createTempContextPath();
+    const context = readContext(contextPath);
+    expect(context).toEqual(defaultClientContext());
+  });
+
+  it("upserts profile values and switches current profile", () => {
+    const contextPath = createTempContextPath();
+
+    upsertProfile(
+      "work",
+      {
+        apiBase: "http://localhost:3100",
+        companyId: "company-123",
+        apiKeyEnvVarName: "PAPERCLIP_AGENT_TOKEN",
+      },
+      contextPath,
+    );
+
+    setCurrentProfile("work", contextPath);
+    const context = readContext(contextPath);
+
+    expect(context.currentProfile).toBe("work");
+    expect(context.profiles.work).toEqual({
+      apiBase: "http://localhost:3100",
+      companyId: "company-123",
+      apiKeyEnvVarName: "PAPERCLIP_AGENT_TOKEN",
+    });
+  });
+
+  it("normalizes invalid file content to safe defaults", () => {
+    const contextPath = createTempContextPath();
+    writeContext(
+      {
+        version: 1,
+        currentProfile: "x",
+        profiles: {
+          x: {
+            apiBase: " ",
+            companyId: " ",
+            apiKeyEnvVarName: " ",
+          },
+        },
+      },
+      contextPath,
+    );
+
+    const context = readContext(contextPath);
+    expect(context.currentProfile).toBe("x");
+    expect(context.profiles.x).toEqual({});
+  });
+});