feat(editor): add --touch-tree CI integrity check

Recursively walks a directory, identifies every recognized .w*
file by 4-byte magic, and parses the standard catalog header
(magic + version + length-prefixed name + entryCount) to
confirm the file isn't truncated, corrupted, or otherwise
malformed at the header level. Reports per-file PASS/FAIL +
extension-mismatch warnings (when a file's actual extension
doesn't match what its magic says it should be).

Exits 1 on any FAIL — designed as a CI gate that runs after
content build to catch truncations / write-failures /
disk-full mid-emit. World/asset formats (WOM/WOB/WHM/WOT/WOW)
are recognized by magic but the catalog-header probe is
skipped since their layouts differ.

Implausibility caps: catalog-name length > 1MB or
entryCount > 1M trigger failure as likely corruption signals.
--quiet hides the per-file PASS/FAIL list (summary line only);
--json variant for tooling integration.

tools/editor/cli_help.cpp

@@ -1357,6 +1357,8 @@ void printUsage(const char* argv0) {
     std::printf("                         Recover the correct .w* extension on a file by reading its 4-byte magic. --dry-run prints the planned move; --force overwrites\n");
     std::printf("  --bulk-rename-by-magic <dir> [--dry-run] [--force]\n");
     std::printf("                         Apply --rename-by-magic recursively to every file in <dir>. Conflicts are skipped without --force; exits 1 if any rename failed\n");
+    std::printf("  --touch-tree <dir> [--json] [--quiet]\n");
+    std::printf("                         CI integrity check: open every recognized .w* file in <dir>, parse standard header, report PASS/FAIL + extension mismatches. Exit 1 on any failure\n");
     std::printf("  --gen-animations <wani-base> [name]\n");
     std::printf("                         Emit .wani starter: 5 essential animations (Stand / Walk / Run / Death / AttackUnarmed) with fallback chains\n");
     std::printf("  --gen-animations-combat <wani-base> [name]\n");