chore: Apply code quality improvements across DamageAndLossLibrary

This commit addresses code quality issues identified by ruff format, ruff check,
and codespell tools across the entire codebase. The changes maintain existing
functionality while improving code consistency, readability, and adherence to
Python best practices.

## Changes Made:

### Code Formatting and Linting (ruff format & ruff check)
- Applied consistent code formatting across 15 Python files
- Fixed docstring formatting and missing docstring issues (D100, D211, D212)
- Cleaned up import statements and unused code
- Standardized quote usage and line spacing

### Configuration Updates
- Updated `pyproject.toml` to include additional ruff ignore rules (PLR2004, D100)
- Updated `.gitignore` for better file exclusion patterns

## Testing:
All changes have been validated to ensure:
- Code passes ruff format checks
- Code passes ruff linting rules
- Spelling issues resolved via codespell
- No breaking changes to existing functionality

Author: zsarnoczay

.gitignore

@@ -2,6 +2,7 @@
 /data_sources/HAZUS_MH_4.2_HU/session.dill
 /doc/build/
 *.pyc
+*.ipynb
 /.ropeproject/
 /doc/cache/
 /doc/source/dl_doc/

doc/source/_extensions/visuals.py

@@ -1,4 +1,4 @@
-#  # noqa: D100
+#
 # Copyright (c) 2023 Leland Stanford Junior University
 # Copyright (c) 2023 The Regents of the University of California
 #
@@ -280,7 +280,7 @@ def plot_fragility(comp_db_path, output_path, create_zip='0'):  # noqa: C901, D1
             table_vals[1] = np.array(ds_list)
 
             font_size = 16
-            if ds_i > 8:  # noqa: PLR2004
+            if ds_i > 8:
                 font_size = 8.5
 
             fig.add_trace(
@@ -317,7 +317,7 @@ def plot_fragility(comp_db_path, output_path, create_zip='0'):  # noqa: C901, D1
             ds_offset = 0.086
             info_font_size = 10
 
-            if ds_i > 8:  # noqa: PLR2004
+            if ds_i > 8:
                 x_loc = 0.4928
                 y_loc = 0.705 + 0.123
                 ds_offset = 0.0455
@@ -575,9 +575,9 @@ def plot_repair(  # noqa: C901, PLR0912, PLR0915
                     conseq_val = float(val)
                     if conseq_val < 1:
                         table_vals[1][ds_i] = f'{conseq_val:.4g}'
-                    elif conseq_val < 10:  # noqa: PLR2004
+                    elif conseq_val < 10:
                         table_vals[1][ds_i] = f'{conseq_val:.3g}'
-                    elif conseq_val < 1e6:  # noqa: PLR2004
+                    elif conseq_val < 1e6:
                         table_vals[1][ds_i] = f'{conseq_val:.0f}'
                     else:
                         table_vals[1][ds_i] = f'{conseq_val:.3g}'
@@ -594,7 +594,7 @@ def plot_repair(  # noqa: C901, PLR0912, PLR0915
             ]
 
             # converted simultaneous damage models might have a lot of DSs
-            if table_vals.shape[1] > 8:  # noqa: PLR2004
+            if table_vals.shape[1] > 8:
                 lots_of_ds = True
             else:
                 lots_of_ds = False