Add Papyrus sync scripts and proxy spawn refactor

Add new Papyrus scripts (CoSync.psc, CoSyncPlayer.psc, CoSyncQuest.psc) providing native bindings and quest/player proxy logic for networking: connection/session APIs, entity management, world/weather/workshop/companion sync, consumable/pipboy/door/power-armor events, and proxy animation/initialization handlers. Refactor the proxy actor controller (F4TProxyActorController.cpp) to support dynamic/runtime proxy spawning and improved lifecycle/visibility handling: change proxy base/form IDs to COPlayerProxy/CommonwealthOnline, add process-list actor lookup, spawn helpers, play-space/cell checks, 3D visibility refresh, ActorHandle usage, and spawn mutexes and globals for safer spawning. Update docs and setup (architecture.md, limitations.md, plugin/setup.md) to describe global dynamic spawn behavior, max runtime proxies (kMaxRuntimeProxyActors = 4), and validation checklist; update launch-two-fallout4.bat to show instance log locations. Misc: small tweaks to logging and debug flags to gate diagnostics.

docs/architecture.md

@@ -111,13 +111,18 @@ both send and receive paths:
     candidate isolation and settle, then promotes the settled actor into the
     existing single-proxy movement pipeline.
 
-The Fallout 4 plugin now dynamically spawns one runtime proxy actor per
-represented remote `playerId` in the test cell, up to a small Stage 4 test cap.
+The Fallout 4 plugin dynamically spawns one runtime proxy actor per represented
+remote `playerId` in the local player's current loaded cell, up to a small cap
+(`kMaxRuntimeProxyActors = 4`). The proxy controller runs in any cell when global
+mode is enabled; dynamic spawn is the default path. Pre-placed Creation Kit
+proxy refs and the single placed fallback remain available behind compile-time
+flags for regression testing in `F4TTestCell01`.
+
+When the local player changes cells, stale proxy actors in the prior cell are
+released and fresh proxies are spawned for co-located remotes in the new cell.
 Disconnected held slots can be reassigned to later server `playerId` values after
 the grace period, but slots held for connected players outside the cell are not
 reused.
-The placed proxy reference remains as a single fallback path if runtime spawning
-fails for one selected remote player.
 
 Proxy animation sync applies curated graph variables from remote movement state:
 
@@ -143,8 +148,8 @@ The native plugin is responsible for:
 - Receiving server packets on a background thread
 - Storing assigned and remote `playerId` state internally
 - Moving runtime proxy actors from per-`playerId` remote-player state on the
-  game thread, preferring runtime slots and falling back to the placed reference
-  for one selected player only if runtime spawning fails
+  game thread via dynamic spawn in the local player's current cell (pre-placed
+  CK pool and placed fallback available behind compile-time regression flags)
 - Holding only the affected proxy actor at a hidden in-cell position when its
   remote player disconnects or leaves the same cell
 - Assigning each runtime proxy slot a unique hidden holding position and

docs/limitations.md

@@ -6,7 +6,8 @@ Fallout 4 was designed as a single-player game. Commonwealth Online is therefore
 
 The first prototype will likely require:
 
-- All players to remain in the same test cell
+- Remote players to be in the same cell/worldspace as the local player to be visible (proxies are not shown across unloaded cells)
+- `Fallout4Together_Test.esp` loaded for the `F4T_RemotePlayerProxy` actor base
 - A clean Fallout 4 test profile
 - A dedicated test save
 - No large gameplay mods
@@ -15,6 +16,8 @@ The first prototype will likely require:
 - No VATS synchronization
 - No dialogue synchronization
 
+Up to four concurrent remote proxies are supported per client (`kMaxRuntimeProxyActors`).
+
 ## Systems Not Supported Early
 
 ### Quests