feat: initial public release

Stealthfox — a patched Firefox 150.0.1 for browser-fingerprint stealth,
shipped as a Playwright-compatible Python wrapper.

  * Sync + async Stealthfox launcher (firefox_user_prefs, virtual desktop
    on Windows, SOCKS5 auth via patched nsProtocolProxyService)
  * fpforge: Bayesian fingerprint sampler over GPU / audio / fonts /
    screen / TCP options / ~400 other navigator fields
  * WebRTC stealth: srflx address swap, synthetic srflx fallback,
    private-LAN host candidates — no real public IP leak via STUN
  * GPU sandbox fix for FF150 alt-desktop regression
  * Bezier-curve mouse motion baked into Juggler

Targets Windows x86_64 + Linux x86_64. Binary fetched on first run from
GitHub Release "firefox-1".

tests/test_cli.py

@@ -0,0 +1,22 @@
+import subprocess
+import sys
+
+
+def test_version_subcommand():
+    r = subprocess.run(
+        [sys.executable, "-m", "stealthfox", "version"],
+        capture_output=True, text=True, check=True,
+    )
+    assert "firefox-" in r.stdout
+    assert "stealthfox" in r.stdout.lower()
+
+
+def test_help_subcommand():
+    r = subprocess.run(
+        [sys.executable, "-m", "stealthfox", "--help"],
+        capture_output=True, text=True,
+    )
+    assert r.returncode == 0
+    assert "fetch" in r.stdout
+    assert "path" in r.stdout
+    assert "clear-cache" in r.stdout