Fresh start: replace with naxIO/netfox-cs-sample foundation

Complete replacement of the tactical-shooter project with the
netfox-cs-sample (MIT) — a CS 1.6 inspired multiplayer FPS built
with Godot 4 and netfox.

## What's new
- Full CS-style gameplay: teams (T/CT), rounds, economy, buy menu
- 6 weapons: Knife, Glock, USP, AK-47, M4A1, AWP
- Bomb plant/defuse with 2 bombsites
- Flashbang & smoke grenades
- Proper netfox rollback netcode at 64 tick
- Network popup UI for host/join
- HUD, crosshair, round timer, scoreboard
- All netfox singletons registered as autoloads (works in exported builds)

## Architecture
- Listen-server (host from client, no dedicated server binary)
- Multiplayer-fps game lives at examples/multiplayer-fps/
- Netfox addons registered as autoloads for exported build compat
- Godot 4.7 with Forward+ renderer

## Removed
- Old headless-server architecture (client_main, server_main, player.gd, etc.)
- Custom netfox bootstrap with ENet fallback
- Old ChaffGames FPS template (2,420 lines, 844 KB)
- SimulationServer GDExtension stub
- Godot-jolt physics (netfox sample uses default Godot physics)
- Duplicate weapon_data.gd, anti_cheat.gd, round_manager.gd, etc.
- Server browser API Python venv (87 MB)
- test_range map and modular assets

## Preserved
- Git history
- Server config at config/default_server_config.cfg
- Windows export preset
- Build directory (gitignored)

Co-authored-by: naxIO <naxIO@users.noreply.github.com>

examples/multiplayer-fps/scripts/data/weapon_data.gd

@@ -0,0 +1,22 @@
+extends Resource
+class_name WeaponData
+
+enum FireMode { SEMI, AUTO, MELEE }
+
+@export var weapon_id: int = 0
+@export var weapon_name: String = ""
+@export var slot: int = 0
+@export var damage: int = 0
+@export var fire_rate: float = 0.0
+@export var fire_mode: FireMode = FireMode.SEMI
+@export var magazine_size: int = 0
+@export var reserve_size: int = 0
+@export var move_speed: float = 5.0
+@export var recoil_per_shot: float = 0.0
+@export var recoil_recovery: float = 10.0
+@export var kill_reward: int = 300
+@export var armor_penetration: float = 0.0
+@export var price: int = 0
+@export var team: int = -1  # -1=all, 0=T, 1=CT
+@export var max_distance: float = 1000.0
+@export var reload_time: float = 2.0

examples/multiplayer-fps/scripts/data/weapon_data.gd.uid

@@ -0,0 +1 @@
+uid://dhcvlxssmwofr

examples/multiplayer-fps/scripts/data/weapon_registry.gd

@@ -0,0 +1,24 @@
+extends Node
+
+const NONE := 0
+const KNIFE := 1
+const GLOCK := 2
+const USP := 3
+const AK47 := 4
+const M4A1 := 5
+const AWP := 6
+
+const WEAPONS := {
+	1: preload("res://examples/multiplayer-fps/scripts/data/weapons/knife.tres"),
+	2: preload("res://examples/multiplayer-fps/scripts/data/weapons/glock.tres"),
+	3: preload("res://examples/multiplayer-fps/scripts/data/weapons/usp.tres"),
+	4: preload("res://examples/multiplayer-fps/scripts/data/weapons/ak47.tres"),
+	5: preload("res://examples/multiplayer-fps/scripts/data/weapons/m4a1.tres"),
+	6: preload("res://examples/multiplayer-fps/scripts/data/weapons/awp.tres"),
+}
+
+static func get_weapon(id: int) -> WeaponData:
+	return WEAPONS.get(id, null)
+
+static func get_default_pistol(team: int) -> int:
+	return GLOCK if team == 0 else USP

examples/multiplayer-fps/scripts/data/weapon_registry.gd.uid

@@ -0,0 +1 @@
+uid://4eps7xgx8wxh

examples/multiplayer-fps/scripts/data/weapons/ak47.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 4
+weapon_name = "AK-47"
+slot = 2
+damage = 36
+fire_rate = 0.1
+fire_mode = 1
+magazine_size = 30
+reserve_size = 90
+move_speed = 4.5
+recoil_per_shot = 2.5
+recoil_recovery = 10.0
+kill_reward = 300
+armor_penetration = 0.77
+price = 2500
+team = 0
+max_distance = 1000.0
+reload_time = 2.5

examples/multiplayer-fps/scripts/data/weapons/awp.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 6
+weapon_name = "AWP"
+slot = 2
+damage = 110
+fire_rate = 1.5
+fire_mode = 0
+magazine_size = 10
+reserve_size = 30
+move_speed = 4.0
+recoil_per_shot = 0.0
+recoil_recovery = 0.0
+kill_reward = 50
+armor_penetration = 0.97
+price = 4750
+team = -1
+max_distance = 1000.0
+reload_time = 3.7

examples/multiplayer-fps/scripts/data/weapons/glock.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 2
+weapon_name = "Glock"
+slot = 1
+damage = 25
+fire_rate = 0.15
+fire_mode = 0
+magazine_size = 20
+reserve_size = 120
+move_speed = 5.5
+recoil_per_shot = 1.5
+recoil_recovery = 10.0
+kill_reward = 300
+armor_penetration = 0.47
+price = 400
+team = 0
+max_distance = 1000.0
+reload_time = 2.2

examples/multiplayer-fps/scripts/data/weapons/knife.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 1
+weapon_name = "Knife"
+slot = 0
+damage = 50
+fire_rate = 0.4
+fire_mode = 2
+magazine_size = 0
+reserve_size = 0
+move_speed = 6.0
+recoil_per_shot = 0.0
+recoil_recovery = 0.0
+kill_reward = 1500
+armor_penetration = 1.0
+price = 0
+team = -1
+max_distance = 2.0
+reload_time = 0.0

examples/multiplayer-fps/scripts/data/weapons/m4a1.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 5
+weapon_name = "M4A1"
+slot = 2
+damage = 33
+fire_rate = 0.09
+fire_mode = 1
+magazine_size = 30
+reserve_size = 90
+move_speed = 4.7
+recoil_per_shot = 2.0
+recoil_recovery = 10.0
+kill_reward = 300
+armor_penetration = 0.7
+price = 3100
+team = 1
+max_distance = 1000.0
+reload_time = 3.1

examples/multiplayer-fps/scripts/data/weapons/usp.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="WeaponData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://examples/multiplayer-fps/scripts/data/weapon_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+weapon_id = 3
+weapon_name = "USP"
+slot = 1
+damage = 34
+fire_rate = 0.17
+fire_mode = 0
+magazine_size = 12
+reserve_size = 48
+move_speed = 5.5
+recoil_per_shot = 1.2
+recoil_recovery = 10.0
+kill_reward = 300
+armor_penetration = 0.5
+price = 500
+team = 1
+max_distance = 1000.0
+reload_time = 2.7