Enhance Torn Vault Tracker: Add documentation, improve exception handling, and update styles

- Updated .gitignore to exclude new directories and files.
- Enhanced config.php with detailed PHPDoc comments for better clarity.
- Refactored functions.php to include PHPDoc comments and improve code readability.
- Added custom exceptions in exceptions.php with detailed documentation.
- Improved utilities.php with better documentation and error handling.
- Updated index.php with structured comments and improved readability.
- Refined style.css for better visual consistency.
- Introduced phpcs.xml for coding style checks and standards enforcement.

style.css

@@ -1,60 +1,60 @@
-:root {
-  --red:   #f77e82;
-  --green: #08817d;
-}
-
-body {
-  background: #000;
-  color: #fff;
-  font-family: 'Roboto', sans-serif;
-  padding: 0 1em;
-}
-
-table {
-  color: #000;
-  visibility: hidden;
-  width: 100%;
-}
-
-table, tr, td, th {
-  border: 1px solid #333;
-  border-collapse: collapse;
-}
-
-thead th {
-  background: #ccc;
-  color: #000;
-  font-weight: bold;
-  padding: .15em 1em;
-  text-align: center;
-  text-transform: uppercase;
-}
-
-tr.debit { background-color: var(--red); }
-
-tr.credit { background-color: var(--green); color: #fff; }
-
-td { padding: .15em 1em; }
-
-#pagination-controls {
-  align-items: center;
-  display: flex;
-  justify-content: center;
-  gap: 1em;
-  margin: 1em 0;
-}
-
-h2, h3, h4 { margin: 0; }
-
-.grid {
-  display: grid;
-  grid-template-columns: repeat(2, 1fr);
-  grid-template-rows: 1fr;
-  grid-column-gap: 4em;
-  grid-row-gap: 0px;
-  margin-top: .5em;
-}
-
-.vault { margin: 0 0 3em; }
-
-.vault h3, h4 { font-style: italic; }
+:root {
+  --red:   #f77e82;
+  --green: #08817d;
+}
+
+body {
+  background: #000;
+  color: #fff;
+  font-family: 'Roboto', sans-serif;
+  padding: 0 1em;
+}
+
+table {
+  color: #000;
+  visibility: hidden;
+  width: 100%;
+}
+
+table, tr, td, th {
+  border: 1px solid #333;
+  border-collapse: collapse;
+}
+
+thead th {
+  background: #ccc;
+  color: #000;
+  font-weight: bold;
+  padding: .15em 1em;
+  text-align: center;
+  text-transform: uppercase;
+}
+
+tr.debit { background-color: var(--red); }
+
+tr.credit { background-color: var(--green); color: #fff; }
+
+td { padding: .15em 1em; }
+
+#pagination-controls {
+  align-items: center;
+  display: flex;
+  justify-content: center;
+  gap: 1em;
+  margin: 1em 0;
+}
+
+h2, h3, h4 { margin: 0; }
+
+.grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  grid-template-rows: 1fr;
+  grid-column-gap: 4em;
+  grid-row-gap: 0px;
+  margin-top: .5em;
+}
+
+.vault { margin: 0 0 3em; }
+
+.vault h3, h4 { font-style: italic; }