repo hygiene: track the PINK launcher import closure

67 production .py modules that the running PINK service imports but which
were never committed: prod/bingx/ (HTTP client, market/user streams,
journal, config), prod/clean_arch/ adapters/persistence/runtime/dita/dita_v2
production modules and their co-located tests. Rule going forward: every
module imported by launch_dolphin_pink.py / pink_direct.py must appear in
git ls-files. Excludes _backup dirs, __pycache__, and non-code files.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

prod/bingx/enums.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from enum import Enum
+
+from nautilus_trader.model.identifiers import Venue
+
+
+BINGX_VENUE = Venue("BINGX")
+PINK_DEFAULT_ENV = None  # resolved later
+
+
+class BingxEnvironment(str, Enum):
+    LIVE = "prod-live"
+    VST = "prod-vst"
+
+    @property
+    def is_vst(self) -> bool:
+        return self is BingxEnvironment.VST
+
+
+# Deferred assignment after enum definition
+PINK_DEFAULT_ENV = BingxEnvironment.VST