Files to copy does not match nested .env files

[adamatan]

Problem

A project with *.env* in “Files to copy” does not copy evals/.env into a new task worktree.

Details

copy_matching only searches the directory named in the pattern, so a pattern without a path searches the repo root. Its matcher also rejects patterns with more than one *, meaning *.env* matches nothing, even at the root.

For now, .env* and evals/.env* can be listed separately.

Acceptance

• Support multiple wildcards and a recursive pattern such as **/.env*.
• Copy matching files into the same relative paths in the worktree.
• Add **/.env* as an example in the help text above the “Files to copy” box, explaining that it matches files at any depth.
• Test root and nested .env files while preserving exact-path and directory-copy behavior.