feat: player animation quality pass — aim follow, reload/throw, recoil

Third-person player characters now animate every action with readable
intent (all networked, cel style preserved):

- Look-around: upper body follows the owner's camera pitch — distributed
  over spine/neck/head so aiming up/down reads on the whole silhouette
  (driven by the already-synced HeadPivot rotation on remotes)
- Reload: the baked PistolReload clip plays as a one-shot whenever the
  equipped weapon starts reloading (local edge-detect poll -> new synced
  action counter replays it on every peer)
- Grenade throw: new Throw clip baked from the library's overhead swing
  (Sword_Attack retarget); triggers on throw, synced the same way
- Shot recoil: visible kick on the shooter's model (shoulders snap back,
  forearms rise, fast decay) driven by the existing fire-effects RPC —
  remote players' shots now look like shots
- Slide: trailing arm braces against the ground for balance on top of the
  feet-first pose
- Armed idle confirmed in capture: weapon held at ready, not arms-down

Plumbing: synced_action/synced_action_seq added to all three player
spawners' replication configs; ACTIONS table on the model maps names to
clips + lock times.

Verified: 18 clips resolve (incl Throw), smoke 0 failures, movement
11/11, acoustics PASSED; third-person run + armed idle captures clean.

Co-Authored-By: Claude Fable 5 <[email protected]>

debug/test_level_builder.gd

@@ -295,6 +295,8 @@ func _spawn_player(pid: int) -> CharacterBody3D:
 	client_rep_config.add_property(":synced_loadout_sp")
 	client_rep_config.add_property(":synced_loadout_melee")
 	client_rep_config.add_property(":synced_loadout_ready")
+	client_rep_config.add_property(":synced_action")
+	client_rep_config.add_property(":synced_action_seq")
 	client_rep_config.add_property(":synced_is_targeting")
 	client_rep_config.add_property(":synced_homing_target_pos")
 	client_sync.replication_config = client_rep_config

debug/visual_capture.gd

@@ -35,9 +35,11 @@ func _process(_delta: float) -> bool:
 			if p.has_method("set_third_person") and p.is_multiplayer_authority():
 				p.set_third_person(true)
 		Input.action_press("move_forward")
-	elif _frames == 320:
+	elif _frames == 300:
 		_shot("tp_run")
 		Input.action_release("move_forward")
+	elif _frames == 338:
+		_shot("tp_idle")
 		# Aerial overview of the whole map
 		var cam := root.get_camera_3d()
 		if cam: