Full correctness check against the docs: safer writes, reverts and texts

Safety
- Writes are serialized (Workspace.lock): two background jobs rebuilding one
  package (a sound and its subtitle applied side by side) lost an edit.
- A store copies a bank file or package as "original" only if it matches the
  shipped catalog (Workspace.unoriginal_files: in-memory sounds, bank copies of
  voice lines, subtitles); the editor refuses to switch stores while changes
  are applied. A second store could otherwise resurrect a reverted sound.
- Mod import in the editor asks before overwriting files changed outside the
  tool (it forced silently).
- Revert all in the editor reverts texts too; the uninstaller counts text
  edits before offering to delete the store.
- ackit restore-backup: the full-backup restore decisions.md described; it
  keeps the sounds of WADs without a full copy recorded.
- build_catalog also stops when a subtitle differs from the catalog.

Languages and texts
- Game.language() returns languages without voices (JPN, RUS, ...) and
  Game.voice_archive() their INT voices; ackit text --lang JPN works.
- Menu lookups parse one cached file (find & replace: minutes -> ms).
- Subtitles decode cp1252 as Windows does: the UTF-8-in-cp1252 line
  Speech_TAPE_J_Answer_1_00 (KOR/POL/POR/RUS) is written back byte-for-byte;
  SUB_KOR/SUB_RUS rebuilt from the original game (only those rows changed).
- Mods exported while another language is loaded keep name and line.

Other fixes
- Down-mix folds extra channels in at -3 dB (a 5.1 centre voice was dropped).
- e2e_editor no longer overwrites the user's settings.json; kill_game waits
  for the game to exit before reverts.
- Recorder handles Int32/UInt8 input and split frames; package block cache
  locked; conflict messages, CLI help examples, stale docstrings and doc
  references fixed; tests no longer read this PC's game language.

Docs (decisions, user guide, README, subtitles.md, banks.md, catalog README,
REPORT, NOTES, CLAUDE.md) updated; check_docs: 102 claims match. 148 tests;
e2e_features 9/9, e2e_editor and verify PASS; game original afterwards.

tools/installer/uninstall.ps1

@@ -14,10 +14,14 @@ $Data = @((Join-Path $env:APPDATA "UnheardCity"), (Join-Path $env:LOCALAPPDATA "
 function Say($msg) { if (-not $Quiet) { Write-Host $msg } }
 
 function Modified-Count {
-    # sounds still changed in the game, according to the originals stores
+    # sounds and texts (subtitles, menu text) still changed in the game, according to the originals stores
     $n = 0
     Get-ChildItem -Path (Join-Path $Data[0] "stores\*\store.json") -ErrorAction SilentlyContinue | ForEach-Object {
-        try { $n += @((Get-Content -Raw -LiteralPath $_.FullName | ConvertFrom-Json).entries.PSObject.Properties).Count } catch {}
+        try {
+            $s = Get-Content -Raw -LiteralPath $_.FullName | ConvertFrom-Json
+            $n += @($s.entries.PSObject.Properties).Count
+            if ($s.texts) { $n += @($s.texts.PSObject.Properties).Count }
+        } catch {}
     }
     return $n
 }
@@ -26,8 +30,8 @@ try {
     if (Get-Process -Name "UnheardCity" -ErrorAction SilentlyContinue) { throw "$Name is running. Close it first." }
     $mods = Modified-Count
     if ($mods -gt 0 -and -not $Quiet) {
-        Write-Host "$mods sound(s) are still modified in the game. To restore the originals, open $Name and use"
-        Write-Host "'Revert all' BEFORE uninstalling (your originals store is kept either way)."
+        Write-Host "$mods sound(s) or text(s) are still modified in the game. To restore the originals, open $Name and"
+        Write-Host "use 'Revert all' BEFORE uninstalling (your originals store is kept either way)."
         if ((Read-Host "Uninstall anyway? [y/N]") -notmatch '^(y|yes)$') { exit 1 }
     }
     if (-not $Quiet -and -not $RemoveUserData -and $mods -eq 0 -and (Test-Path $Data[0])) {