fix(cli): type the approvalFlow test helper's edges param (unblock TS on main)

`packages/cli/src/utils/lint-flow-patterns.test.ts:190` had an untyped `edges`
parameter (TS7006 under the build's noImplicitAny), introduced by #2279. The
TypeScript Type Check job builds the whole workspace, so this fails CI for
*every* open PR. Add the edge-array type (and an explicit approvalConfig type).
Test-only; no behavior change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: os-zhuang

packages/cli/src/utils/lint-flow-patterns.test.ts

@@ -187,7 +187,10 @@ describe('lintFlowPatterns — wrong interpolation syntax (#1315)', () => {
 
 
 describe('lintFlowPatterns — approval revise loop (ADR-0044)', () => {
-  const approvalFlow = (edges, approvalConfig = {}) => ({
+  const approvalFlow = (
+    edges: Array<{ source: string; target: string; label?: string; type?: string }>,
+    approvalConfig: Record<string, unknown> = {},
+  ) => ({
     flows: [{
       name: 'budget_approval',
       nodes: [