refactor(HAI-116): rename kb to hai across all packages, CLI, and docs

- Rename npm packages from @kb/* to @hai/* and update all workspace references
- Rename CLI binary from kb to hai and config directory from .kb to .hai
- Update dashboard UI branding, titles, and references from kb to hai
- Update all test files, CI workflows, and documentation to reflect new naming
- Run comprehensive grep verification to ensure no stale kb references remain

packages/dashboard/app/components/__tests__/InlineCreateCard.test.tsx

@@ -15,7 +15,7 @@ vi.mock("../../api", () => ({
 function renderCard() {
   const props = {
     tasks: [],
-    onSubmit: vi.fn().mockResolvedValue({ id: "HAI-001" }),
+    onSubmit: vi.fn().mockResolvedValue({ id: "KB-001" }),
     onCancel: vi.fn(),
     addToast: vi.fn(),
   };