feat: initial release of @mobiletic/anonymizer

Framework-agnostic PII anonymization extracted from Mobiletic's chatbot.
Pluggable LLM detection + configurable regex fallback, deterministic
coreference, and streaming-safe de-anonymization.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/presets.ts

@@ -0,0 +1,29 @@
+import type { PatternDef } from './types.js';
+
+/**
+ * Swiss preset — the structured identifiers most relevant to the Swiss nLPD.
+ * Order matters: specific patterns (AVS, IBAN) come before generic ones.
+ */
+const swiss: PatternDef[] = [
+  { tag: 'AVS', re: /\b756\.\d{4}\.\d{4}\.\d{2}\b/g }, // Swiss social security (AVS/AHV)
+  { tag: 'IBAN', re: /\bCH\d{2}[0-9A-Z]{17}\b/gi }, // Swiss IBAN
+  { tag: 'EMAIL', re: /\b[\w.+-]+@[\w-]+\.[\w.-]+\b/g },
+  { tag: 'TEL', re: /(?:\+41|0)(?:[\s.-]?\d){9}\b/g }, // Swiss phone number
+  { tag: 'DATE', re: /\b\d{1,2}[./-]\d{1,2}[./-]\d{2,4}\b/g },
+];
+
+/**
+ * Generic preset — locale-agnostic identifiers useful as a starting point
+ * anywhere. Extend or compose with your own {@link PatternDef}s as needed.
+ */
+const generic: PatternDef[] = [
+  { tag: 'EMAIL', re: /\b[\w.+-]+@[\w-]+\.[\w.-]+\b/g },
+  { tag: 'IBAN', re: /\b[A-Z]{2}\d{2}[0-9A-Z]{11,30}\b/g },
+  { tag: 'CREDIT_CARD', re: /\b(?:\d[ -]?){13,16}\b/g },
+  { tag: 'IPV4', re: /\b(?:\d{1,3}\.){3}\d{1,3}\b/g },
+  { tag: 'TEL', re: /\b(?:\+?\d{1,3}[\s.-]?)?(?:\(?\d{2,4}\)?[\s.-]?){2,4}\d{2,4}\b/g },
+  { tag: 'DATE', re: /\b\d{1,2}[./-]\d{1,2}[./-]\d{2,4}\b/g },
+];
+
+/** Built-in pattern sets for the regex fallback. */
+export const presets = { swiss, generic };