feat: claude-code tokenization proxy with ggshield DLP

Local DLP proxy between claude-code and the Anthropic API. Scans outgoing
/v1/messages bodies with ggshield, swaps detected secrets for opaque
placeholder tokens, and restores them in the streamed SSE response on the fly.

Licensed under AGPL-3.0-or-later.

tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "allowImportingTsExtensions": true,
+    "noEmit": true,
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "types": ["node"]
+  },
+  "include": ["src"]
+}