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>

script_templates/VestTest/define.gd

@@ -0,0 +1,16 @@
+# meta-name: Test suite with define()
+# meta-description: Test suite with a name set and test suite definition
+
+extends _BASE_
+
+func get_suite_name() -> String:
+	return "_CLASS_"
+
+func suite():
+	# Add your test cases here
+	test("some test", func():
+		ok()
+	)
+	test("another test", func():
+		todo("Implement tests")
+	)

script_templates/VestTest/define.gd.uid

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

script_templates/VestTest/empty.gd

@@ -0,0 +1,8 @@
+# meta-name: Empty test suite
+# meta-description: Test suite with a name set and no test methods or definitions
+# meta-default: true
+
+extends _BASE_
+
+func get_suite_name() -> String:
+	return "_CLASS_"

script_templates/VestTest/empty.gd.uid

@@ -0,0 +1 @@
+uid://bsmiext4pyct

script_templates/VestTest/test_methods.gd

@@ -0,0 +1,14 @@
+# meta-name: Test suite with methods
+# meta-description: Test suite with a name set and test methods
+
+extends _BASE_
+
+func get_suite_name() -> String:
+	return "_CLASS_"
+
+# Add your test cases here
+func test_case_a():
+	ok()
+
+func test_case_b():
+	todo("Implement tests")

script_templates/VestTest/test_methods.gd.uid

@@ -0,0 +1 @@
+uid://bgjhtuoemc3xl