fix audit findings: stale test counts, redundant guard, finally cleanup

docs/testing.md

@@ -30,9 +30,9 @@ on any failure — that's the form the GitHub Actions workflow uses.
 Headline numbers as of this writing — Pester `It`-block counts for
 the auto lanes (the manifest entries are coarser; each entry is a
 test *file* that typically contains 3–10 individual assertions):
-**373 pure** + **46 distro** = ~419 auto checks. The 4 **manual** entries
+**373 pure** + **68 distro** = ~441 auto checks. The 4 **manual** entries
 in the manifest aren't Pester `It` blocks — they're y/n prompts wired
-through `Invoke-ManualTest` — bringing the suite total to ~423 checks. CI runs parse-check + pure on
+through `Invoke-ManualTest` — bringing the suite total to ~445 checks. CI runs parse-check + pure on
 every push to any branch; the distro lane runs on PRs and on `master`.
 Manual is opt-in (never in CI); diag is on-demand.
 

modules/Prune.psm1

@@ -180,7 +180,7 @@ function Find-StaleWorktrees {
     }
 
     # ---- hostProjects (checkouts on the Windows side) ----
-    if ($ProfileSpec -and $ProfileSpec.ContainsKey('projects') -and $ProfileSpec.projects) {
+    if ($ProfileSpec -and $ProfileSpec.ContainsKey('projects')) {
         foreach ($p in @($ProfileSpec.projects)) {
             if (-not ($p -is [hashtable])) { continue }
             $ptype = 'distro'

tests/distro/Prune.Tests.ps1

@@ -44,10 +44,11 @@ AfterAll {
     try {
         Invoke-Claudearium -DistroName $script:distro -ProfilePath $script:profilePath `
             -Args @{ Verb='project'; SubVerb='remove'; Arg=$script:proj; Force=$true } -AllowFail | Out-Null
-    } catch {}
-    Invoke-InDistro -Name $script:distro -User 'claude' -AllowFail -CaptureOutput `
-        -Command 'rm -rf /tmp/prune-test-remote.git /tmp/prune-test-seed' | Out-Null
-    Remove-Item -LiteralPath $script:profilePath -ErrorAction SilentlyContinue
+    } finally {
+        Invoke-InDistro -Name $script:distro -User 'claude' -AllowFail -CaptureOutput `
+            -Command 'rm -rf /tmp/prune-test-remote.git /tmp/prune-test-seed' | Out-Null
+        Remove-Item -LiteralPath $script:profilePath -ErrorAction SilentlyContinue
+    }
 }
 
 Describe 'prune detects orphaned sessions when the worktree dir is gone' -Tag 'distro' {