fix(e2e): split test paths for bun test args array

e2e.ts runTest was passing all paths as single string argument,
causing bun to treat it as one malformed path. Split on spaces
to properly pass multiple test paths.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/cli/src/commands/e2e.ts

@@ -52,7 +52,8 @@ function runCmd(label: string, cmd: string, args: string[], cwd?: string, timeou
  */
 function runTest(label: string, testPath: string): { pass: boolean; detail: string } {
   const bun = findBun()
-  return runCmd(label, bun, ['test', testPath])
+  const paths = testPath.split(' ').filter(p => p.length > 0)
+  return runCmd(label, bun, ['test', ...paths])
 }
 
 export function e2eCommand(): void {