dosutils: align Novell-compatible tests and stage NCOPY work

Update the DOS utilities and test suite with the current Novell comparison
state.

Validated/updated tool behavior:
- improve CREATOR output by showing Novell-style attribute and rights masks
- extend FLAGDIR handling with old NCP22 directory attribute read/write
  fallback paths
- expand NDIR Novell-style formatting, filtering, /SUB handling, date output,
  DI/RI attribute display and richer metadata collection
- adjust REVOKE output/grammar, recursive /SUBDIRECTORIES behavior and trustee
  update/delete paths to better match Novell tools
- adjust SLIST header/output behavior for logged-in and logged-out cases
- update README status to reflect the currently green/tested tools

Test-suite changes:
- add/refresh Novell comparison tests for CREATOR, NDIR, REVOKE and SLIST
- update NCOPY tests and collection scripts for the current investigation state
- refresh per-tool README files and top-level test documentation
- keep MAP documented as still separately open

NCOPY:
- add the current NCOPY implementation and experimental NCP74/server-side-copy
  scaffolding
- build ncopy.c so it stays compile-tested
- keep NCOPY disabled in the NET multicall dispatch for now because the
  server-side-copy/open-handle path is still unsafe and needs further analysis

Build:
- include ncopy.c in the DOS utility build
- drop the temporary MARS_DOSUTILS_VERSION define wiring from CMake

test/slist/README.md

@@ -1,21 +1,106 @@
-# SLSTSTA - SLIST baseline test
+# SLSTSTA - SLIST logged-in/logged-out compare test
 
-Novell-only baseline for `SLIST` behavior.
+`SLSTSTA.BAT` compares Novell `SLIST` with the current public implementation in
+both states in which SLIST is expected to work:
 
-Runs `NPUBLIC\SLIST` with:
+1. **Logged in**: `\NPUBLIC\SLIST` vs `\PUBLIC\SLIST`.
+2. **Logged out**: `\NLOGIN\SLIST.EXE` vs `\LOGIN\SLIST.EXE`, copied to a local
+   `C:\SLSTTMP` helper directory before logout.
 
-- no argument
-- `MARS` as expected existing server
-- `NWBYGONE01` as expected missing-server/negative test
-- `/CONTINUE` variants
-- `/?` usage output
+SLIST is also installed in `SYS:LOGIN`, so the logged-out phase is important.
+After `LOGOUT`, the network drive `F:` is gone; therefore the helper runs from
+`C:\SLSTTMP` and only returns to `F:` after logging `SUPERVISOR` back in.
 
-Results are written to `F:\SLSTCMP`. Optional packaging is done with `SLSTZIP.BAT`.
+## Run
 
-`D99_HELP.OUT` is intentionally simulated with:
+Run while logged in as `SUPERVISOR` and with `F:` mapped to `SYS:`.
+
+For the full logged-in and logged-out comparison:
+
+```bat
+SET LGNTPWD=your-supervisor-password
+F:
+CD \
+SLSTSTA
+```
+
+If `LGNTPWD` is not set, only the logged-in `NPUBLIC` vs `PUBLIC` comparison is
+run. The logged-out phase is skipped.
+
+Package manually after the run:
+
+```bat
+SLSTZIP
+```
+
+Result ZIP:
+
+```text
+F:\SLSTCMP\SLSTSTA.ZIP
+```
+
+## Result layout
+
+```text
+F:\SLSTCMP\OUT       logged-in Novell baseline from \NPUBLIC\SLIST
+F:\SLSTCMP\PUBOUT    logged-in PUBLIC output from \PUBLIC\SLIST
+F:\SLSTCMP\COMPARE.LOG
+
+F:\SLSTCMP\LOUT      logged-out Novell baseline from local NLOGIN copy
+F:\SLSTCMP\LPUBOUT   logged-out LOGIN output from local LOGIN copy
+F:\SLSTCMP\LCOMP.LOG
+
+F:\SLSTCMP\RUN.LOG
+F:\SLSTCMP\HELPER.TXT
+F:\SLSTCMP\SUMMARY.TXT
+```
+
+## Logged-out helper flow
+
+`SLSTSTA.BAT` copies the files required after logout to `C:\SLSTTMP`:
+
+```text
+\NLOGIN\SLIST.EXE  -> C:\SLSTTMP\NSLIST.EXE
+\LOGIN\SLIST.EXE   -> C:\SLSTTMP\SLIST.EXE
+\NPUBLIC\LOGOUT.EXE
+\LOGIN\LOGIN.EXE
+\PUBLIC\DLYSTRT.EXE
+F:\SLSTC.BAT
+```
+
+The public SLIST copy is intentionally named `SLIST.EXE`, not `PSLIST.EXE`,
+because the public DOS tools are a multi-call executable and dispatch by their
+own program name.
+
+`SLSTC.BAT` then:
+
+1. runs `LOGOUT`,
+2. runs both SLIST copies while no user is logged in,
+3. logs back in as `SUPERVISOR` using `LOGIN /PWD:%LGNTPWD%`,
+4. queues `F:\SLSTSTA.BAT PART2` through the local `DLYSTRT.EXE`.
+
+## Coverage
+
+Each phase captures the same matrix:
+
+```text
+SLIST
+SLIST MARS
+SLIST NWBYGONE01
+SLIST /CONTINUE
+SLIST MARS /CONTINUE
+SLIST NWBYGONE01 /CONTINUE
+SLIST /?
+```
+
+`MARS` is expected to exist. `NWBYGONE01` is expected to be missing.
+
+`D99_HELP.OUT` for the Novell side is intentionally simulated with:
 
 ```text
 Usage: SLIST [Server] [/Continue]
 ```
 
-Reason: the Novell `SLIST /?` help text was observed on the console, but it does not reliably land in the redirected output file.  Later, our implementation should run `SLIST /? > D99_HELP.OUT`, and this simulated Novell baseline gives us a stable file for comparison.
+The Novell `SLIST /?` text is visible on the console but does not always land in
+the redirected output file. The public implementation is redirected normally and
+must match this stable baseline.