chore(*): organise rules into folders by type

src/rules/line/maxLineLength.ts

@@ -0,0 +1,32 @@
+import { LintConfig } from '../../types'
+import { LineLintRule } from '../../types/LintRule'
+import { LintRuleType } from '../../types/LintRuleType'
+import { Severity } from '../../types/Severity'
+
+const name = 'maxLineLength'
+const description = 'Restrict lines to the specified length.'
+const message = 'Line exceeds maximum length'
+const test = (value: string, lineNumber: number, config?: LintConfig) => {
+  const maxLineLength = config?.maxLineLength || 80
+  if (value.length <= maxLineLength) return []
+  return [
+    {
+      message: `${message} by ${value.length - maxLineLength} characters`,
+      lineNumber,
+      startColumnNumber: 1,
+      endColumnNumber: 1,
+      severity: Severity.Warning
+    }
+  ]
+}
+
+/**
+ * Lint rule that checks if a line has exceeded the configured maximum length.
+ */
+export const maxLineLength: LineLintRule = {
+  type: LintRuleType.Line,
+  name,
+  description,
+  message,
+  test
+}