Phase 3 batch 1 of the pnpm test import (5 tests from
pnpm/test/monorepo/index.ts → test/pnpm_monorepo_index.bats):
no-projects-matched warn-and-exit-0 (line 31, 3 sub-cases),
topological run order under --filter=...<pkg> with intervening
unrelated workspace packages (line 512), and ./packages/** directory
glob (line 1662 sub-case 2).

Aube-side fixes that landed alongside the ports:
- wire the parsed-but-unread --fail-if-no-match global into
  EffectiveFilter; soften aube list's no-match path from hard-error
  to "No projects matched the filters in <root>" + exit 0
  (suppressed under --parseable, hard-errors with --fail-if-no-match)
- accept --depth=-1 as an alias for --depth=0 (pnpm's spelling for
  "no transitives")
- parse ./packages/** as a synonym for ./packages — aube's path
  selector is "at or under" by design, no separate legacyDirFiltering
  gate
- filtered list --parseable now leads each importer block with the
  package directory path; non-filtered --parseable keeps the legacy
  3-field tab-separated dep records

legacyDirFiltering added to the explicit-skip section in
PNPM_TEST_IMPORT.md — aube's path-selector default is the more
useful one.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

…rkspace error

Address greptile review on #457:
- Pre-compute workspace_pkgs + selected once in `run()` and thread the
  result into `run_filtered`, eliminating the duplicate
  find_workspace_packages + select_workspace_packages walk on the
  match path.
- Restore the "aube list: --filter requires a workspace root..." hard
  error when filter is set but no workspace config exists at or above
  the cwd. The previous patch silently downgraded that case to the
  soft "No projects matched" path.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

…ck filtered parseable shape

Address review on #457:
- Cursor (medium): the no-match warning was suppressed only when the
  `--parseable` shortcut was set, but `--format parseable` /
  `--format json` set `args.format` instead, so those routes still
  printed the human "No projects matched..." message and corrupted
  machine-parseable stdout. Hoist the format resolution above the
  no-match check and gate the warning on `format == Default`. Cleans
  the same gap for `--json` / `--format json` (the previous
  suppression only checked `args.parseable`).
- Greptile (P1): filtered `aube list --parseable` now emits a leading
  package-directory line per importer (matches the help-text contract
  in `list.rs` and pnpm's shape). Lock the format with a bats
  regression so a future format change has to update the test.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Address cursor bugbot review on #457: mapping `--depth=-1` to `0`
diverged from pnpm. In pnpm `--depth=-1` means "list project headers
only, no deps", while `--depth=0` means "direct deps only". Aube's
prior collapse silently leaked direct deps in `--parseable` output for
projects that actually had deps. The previous bats test passed only
because the fixture had zero-dep projects.

Replace `pub depth: usize` with a `Depth` struct that carries both
`include_direct: bool` and the transitive `max: usize`. Wire it
through:
- `--depth=-1`  → `Depth { include_direct: false, max: 0 }`
- `--depth=N`   → `Depth { include_direct: true,  max: N }`
- `--depth=Inf` → `Depth { include_direct: true,  max: usize::MAX }`

`render_default_for_importer` / `render_parseable_for_importer` /
`json_importer_value` early-return after the project header when
`include_direct` is false. Strengthen the directory-filtering bats
test with a real dep on `is-odd` so it would now fail under the old
collapse, plus a sanity check that `--depth=0` still surfaces direct
deps.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>