Add hub usage help page with settings nav toggle.

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

manual_trading_hub/hub.py

@@ -89,6 +89,7 @@ from lib.hub.hub_entry_plan_lib import (
     meta_payload as entry_plan_meta_payload,
     update_entry_plan,
 )
+from lib.hub.hub_help_lib import help_meta_payload, load_help_payload
 from lib.hub.hub_strategy_lib import (
     build_export_html,
     build_print_html,
@@ -983,6 +984,7 @@ def root_redirect():
 @app.get("/funds")
 @app.get("/ai")
 @app.get("/strategy")
+@app.get("/help")
 @app.get("/logs")
 @app.get("/settings")
 def shell_pages():
@@ -1094,6 +1096,7 @@ class SettingsDisplayBody(BaseModel):
     show_nav_ai: bool = True
     show_nav_calculator: bool = True
     show_nav_strategy: bool = True
+    show_nav_help: bool = True
     show_nav_logs: bool = True
 
 
@@ -3275,6 +3278,19 @@ def api_strategy_meta():
     return strategy_meta_payload()
 
 
+@app.get("/api/help/meta")
+def api_help_meta():
+    return help_meta_payload()
+
+
+@app.get("/api/help/{section_key}")
+def api_help_section(section_key: str):
+    try:
+        return load_help_payload(section_key.strip().lower())
+    except KeyError:
+        return JSONResponse({"ok": False, "msg": "unknown section"}, status_code=404)
+
+
 @app.get("/api/system-logs/meta")
 def api_system_logs_meta():
     return system_logs_meta()