Add hub system logs page with PM2 stdout/stderr tabs for all exchanges.

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/hub.py

@@ -95,6 +95,7 @@ from lib.hub.hub_strategy_lib import (
     load_strategy_payload,
     strategy_meta_payload,
 )
+from lib.hub.hub_system_logs_lib import load_system_logs, system_logs_meta
 from lib.hub.hub_macro_calendar_lib import (
     MACRO_EVENT_LABELS,
     MACRO_EVENT_TYPES,
@@ -971,6 +972,7 @@ def root_redirect():
 @app.get("/funds")
 @app.get("/ai")
 @app.get("/strategy")
+@app.get("/logs")
 @app.get("/settings")
 def shell_pages():
     return _shell_page()
@@ -1081,6 +1083,7 @@ class SettingsDisplayBody(BaseModel):
     show_nav_ai: bool = True
     show_nav_calculator: bool = True
     show_nav_strategy: bool = True
+    show_nav_logs: bool = True
 
 
 class SupervisorSettingsBody(BaseModel):
@@ -3261,6 +3264,19 @@ def api_strategy_meta():
     return strategy_meta_payload()
 
 
+@app.get("/api/system-logs/meta")
+def api_system_logs_meta():
+    return system_logs_meta()
+
+
+@app.get("/api/system-logs/{target}")
+def api_system_logs(target: str, lines: int = 200):
+    try:
+        return load_system_logs(target, lines=lines)
+    except KeyError:
+        return JSONResponse({"ok": False, "msg": "unknown log target"}, status_code=404)
+
+
 @app.get("/api/strategy/{exchange_key}")
 def api_strategy_detail(exchange_key: str):
     try: