Add basic movement state to transform packets

Add optional movement-state fields (isMoving, isSprinting, isSneaking, isJumping, weaponDrawn, movementSpeed) to transform packets and wire them end-to-end. Plugin changes: extend F4TNetworking API and RemotePlayerState, derive movement speed/jump state on the game-thread, validate values, include fields when formatting transform JSON, and add throttled remote movement-state logging. main.cpp adds sampling, speed/vertical calculations, jump hold logic, and change-detection to avoid extra sends. Networking parsing (F4TNetworking.cpp) reads optional booleans/floats safely, preserves backwards compatibility, and clears movement-state logs on disconnect. Proxy controller includes a TODO note for future animation use. Server and docs: update protocol and packet docs, dev-log, server README, and fake_client.py to parse/display optional fields safely. Also add several .cursor rule files for coding, documentation, protocol, project overview, and testing guidance. This milestone prepares the data model for later animation/behavior work while keeping existing relay behavior unchanged.

protocol/packets.md

@@ -63,6 +63,12 @@ Example after server processing:
   "cellId": "0000DD60",
   "worldspaceId": "0000003C",
   "clientTime": 1780212128.301,
+  "isMoving": true,
+  "isSprinting": false,
+  "isSneaking": false,
+  "isJumping": false,
+  "weaponDrawn": false,
+  "movementSpeed": 186.4,
   "serverTime": 1780212128.3011043
 }
 ```
@@ -80,6 +86,12 @@ movementType  Movement classification for this transform update.
 cellId        Current cell form ID as a string.
 worldspaceId  Current worldspace form ID as a string.
 clientTime    Timestamp generated by the sending plugin.
+isMoving      Optional movement-state flag; defaults to false when missing.
+isSprinting   Optional movement-state flag; defaults to false when missing.
+isSneaking    Optional movement-state flag; defaults to false when missing.
+isJumping     Optional movement-state flag; defaults to false when missing.
+weaponDrawn   Optional weapon drawn state; defaults to false when missing.
+movementSpeed Optional derived movement speed in game units per second; defaults to 0.0 when missing.
 serverTime    Timestamp added by the server before broadcast.
 ```
 
@@ -95,6 +107,9 @@ teleport
 `cell_change` and `worldspace_change` are currently represented through
 `movementType` inside transform packets. They are not separate packet types yet.
 
+Movement state fields are data-only for now. Receivers must treat them as
+optional and must not reject older transform packets when they are absent.
+
 ### Disconnect Packet
 
 Sent by the server to remaining connected clients when a client disconnects.

protocol/player-sync.md

@@ -46,12 +46,21 @@ cellId
 worldspaceId
 clientTime
 serverTime
+isMoving
+isSprinting
+isSneaking
+isJumping
+weaponDrawn
+movementSpeed
 lastReceivedLocalTime
 ```
 
 Required transform packet fields are `type`, `playerId`, `x`, `y`, `z`,
 `angleZ`, and `cellId`. `worldspaceId`, `movementType`, `clientTime`, and
 `serverTime` are optional; interior test cells may omit `worldspaceId`.
+Movement state fields are also optional and default to not moving, not
+sprinting, not sneaking, not jumping, weapon holstered, and speed `0.0` when
+missing.
 
 This model proves the data shape and lifecycle before spawning remote actors.
 For the current visual milestone, the controller represents only one remote
@@ -80,6 +89,8 @@ player exists.
 - Normal proxy movement is smoothed toward the latest received target, while
   `cell_change`, `worldspace_change`, and `teleport` transforms snap directly to
   avoid slow movement across large discontinuities.
+- Transform packets now include basic movement state data for future animation
+  work, but the proxy actor does not apply animations from that state yet.
 
 ## Transform Cadence
 
@@ -97,6 +108,7 @@ remote transform state on the networking thread and moves actors only from the
 game-thread proxy controller.
 
 No Fallout 4 remote actor is dynamically spawned yet.
+No animation graph sync or animation application is implemented yet.
 
 ## Planned Later