Add instance nav prefs, env config UI, and PM2 restart.

P1-P4: configurable nav/section visibility in system settings, full .env editor with restart badges, password change, runtime hot overrides, and single-instance pm2 restart. Works in hub embed iframe.
Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_instance_display_env_settings.py

@@ -0,0 +1,57 @@
+"""instance_display_prefs_lib 与 env_file_lib 单元测试。"""
+from __future__ import annotations
+
+import os
+import tempfile
+import unittest
+
+from lib.env.env_file_lib import apply_env_updates, env_get, read_env_lines
+from lib.env.env_schema import parse_env_example_schema, validate_env_updates
+from lib.instance.instance_display_prefs_lib import normalize_display_prefs, tab_allowed
+
+
+class TestInstanceDisplayPrefs(unittest.TestCase):
+    def test_normalize_defaults_all_on(self):
+        prefs = normalize_display_prefs({})
+        self.assertTrue(prefs["show_nav_env_config"])
+        self.assertTrue(prefs["show_settings_password"])
+
+    def test_tab_allowed_respects_prefs(self):
+        prefs = normalize_display_prefs({"show_nav_stats": False})
+        self.assertFalse(tab_allowed("stats", prefs))
+        self.assertTrue(tab_allowed("trade", prefs))
+
+
+class TestEnvFileLib(unittest.TestCase):
+    def test_upsert_and_read(self):
+        with tempfile.TemporaryDirectory() as td:
+            path = os.path.join(td, ".env")
+            with open(path, "w", encoding="utf-8") as f:
+                f.write("FOO=1\n")
+            changed = apply_env_updates(path, {"FOO": "2", "BAR": "x"})
+            self.assertIn("FOO", changed)
+            self.assertIn("BAR", changed)
+            lines = read_env_lines(path)
+            self.assertEqual(env_get(lines, "FOO"), "2")
+            self.assertEqual(env_get(lines, "BAR"), "x")
+
+
+class TestEnvSchema(unittest.TestCase):
+    def test_parse_okx_example(self):
+        root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+        example = os.path.join(root, "crypto_monitor_okx", ".env.example")
+        if not os.path.isfile(example):
+            self.skipTest("missing okx .env.example")
+        groups = parse_env_example_schema(example)
+        keys = [f["key"] for g in groups for f in g.get("fields", [])]
+        self.assertIn("OKX_API_KEY", keys)
+        self.assertIn("MAX_ACTIVE_POSITIONS", keys)
+
+    def test_validate_unknown_key(self):
+        groups = [{"title": "t", "fields": [{"key": "A", "type": "text", "sensitive": False}]}]
+        clean, errors = validate_env_updates(groups, {"B": "1"})
+        self.assertTrue(errors)
+
+
+if __name__ == "__main__":
+    unittest.main()