Deploy: RP loops (no single-shot) + confirm DOSBox needs no bundled DLLs

- net-boot/loop_rp.bat: GO.BAT-style netnub loop for RP (mirror of loop.bat,
  retargeted to rpl4opt). deploy/net_rp.conf.tmpl now calls it instead of the
  single-shot netnub + DOS pause -- the deployable runs in a loop until the
  supervisor kills DOSBox (per operator: no single-shot in the product).
- DLL closure resolved: dosbox-x.exe is a 182MB STATIC build -- import table is
  only Windows system DLLs, delay-import table empty, libpng/SDL/zlib embedded.
  Nothing to bundle; wpcap.dll comes from the Npcap install. package.ps1's "no
  DLLs" case is now informational, and the plan/README note the static build.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

emulator/deploy/README.md

@@ -10,7 +10,7 @@ Sources for the self-contained, air-gapped pod install. See
 | `postinstall.bat` | elevated entry TeslaLauncher runs after extraction: finds the package folder, installs bundled Npcap, calls `configure.ps1` |
 | `configure.ps1` | the per-pod step: detects the NIC + bay IP, derives the game IP = **bayIP+100**, binds DOSBox's pcap (`realnic`), renders the conf templates, stamps `WATTCP.CFG my_ip` |
 | `net_loop.conf.tmpl` | BattleTech conf template (looped netnub) |
-| `net_rp.conf.tmpl` | Red Planet conf template (single-shot) |
+| `net_rp.conf.tmpl` | Red Planet conf template (looped netnub via `loop_rp.bat`) |
 | `package.ps1` | assembles the deployable zip from repo sources + a fresh self-contained `pod-launch` publish |
 
 Template tokens filled at install: `@@ROOT@@` (package dir), `@@REALNIC@@` (this
@@ -71,13 +71,19 @@ zip root + the package folder), and writes `emulator\dist\<PackageName>.zip`.
 `-NoContent` skips `ALPHA_1`/`net-boot` for a fast structural check. Externally-
 procured pieces are bundled only when their paths are passed (else flagged).
 
+## DLLs / runtime
+
+`dosbox-x.exe` is a **static build** (182 MB): its import table is only Windows
+system DLLs and the delay-import table is empty, so there are **no MinGW/SDL DLLs
+to bundle**. The one runtime DLL it needs, `wpcap.dll`, is provided by the Npcap
+install. (Its other `LoadLibrary` strings are optional features our confs don't
+use -- Glide/3dfx, ASPI, ANGLE, inpout -- or Windows-provided D3D/DXGI.)
+
+Both deploy confs run netnub in a **loop** until the supervisor is killed
+(`loop.bat` for BT, `loop_rp.bat` for RP) -- no single-shot in the deployable.
+
 ## Not yet in the repo / OPEN
 
 - `npcap.exe` (licensed installer -- procured out-of-band) and any `vc_redist`.
 - The frozen `renderer.exe` (packaging decision with David; `pod-launch` falls
   back to `pyw live_bridge.py` when absent).
-- **DOSBox-X runtime DLL closure** (MinGW/SDL DLLs): none sit beside
-  `dosbox-x.exe` in the dev tree -- it finds them via MSYS2 on PATH. The air-
-  gapped package must bundle them; `package.ps1` copies any DLLs beside the exe
-  and warns when there are none.
-- RP loop-vs-single-shot for retail parity (template currently mirrors dev).