v0.0.81 - Bugfixes for 0.0.78 release

Bugfixes for 0.0.78 release

• Fixed circular import errors that broke import quantstats (#499, #501)

• Fixed NameError: name 'dd_get_stats' is not defined in reports.full() (#502)

• Fixed reports.html() to work without specifying output file (opens in browser)

• Fixed profit_ratio() to handle DataFrame inputs properly

• Removed dark mode CSS from HTML report template

• Suppressed pandas FutureWarning for callable resampler.apply()

• Improved HTML report header:

  • Title shows "(Compounded)" only when compounded=True
  • Date range shows "(matched dates)" only when match_dates=True with benchmark
  • Parameters now always show Benchmark, Periods/Year, and RF rate

• Added new metrics to full HTML report:

  • Ulcer Performance Index, Risk-Adjusted Return, Risk-Return Ratio
  • Avg. Return, Avg. Win, Avg. Loss, Win/Loss Ratio, Profit Ratio

• Added terminal output parameters table for reports.full() and reports.basic()

• Added comprehensive test suite (125 tests):

  • Tests for stats, reports, utils, plots, compat, extend_pandas, and Monte Carlo