Fix: Final runtime errors (backtest_output NameError and TA-Lib TSI attribute error).

Fix: AttributeError 'NoneType' object has no attribute 'queue' by returning app object in main_interface

Fix: AttributeError 'list' object has no attribute 'keys' in app.py

Fix: SyntaxError in update_horizon_label function in app.py

Rename app_7.py to app.py

Rename app.py to app_6.py

Update app.py

Update app.py

Update app.py

Update app.py

Feature: Integrate StockData.org as a data source. Fix: AttributeError in app.py.

Rename app_6.py to app.py

Rename app.py to app_7.py

Fix AttributeError: 'list' object has no attribute 'keys' in app.py

Rename app_5.py to app.py

Rename app.py to app_4.py

Update app.py

Rename app_4.py to app.py

Rename app.py to app_3.py

Rename app_3.py to app.py

Rename app.py to app_2.py

Stashing changes before rebase

Update app.py

Final fix for multiple syntax errors in app.py

Fix f-string syntax error in app.py (line 96)

Fix f-string syntax error in app.py

Corrected syntax error in app.py: target assignment on new line

Fix syntax error in app.py

Fix indentation error in plot.py

Fix logging format string in app.py

Fix indentation error in core/plot.py and update app.py for correct data passing.

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Upload app.py

Update app.py

Update app.py

Upload app.py