feat(provision): Phase-0 throwaway test VM via vendored @olsitec/pulumi-hetzner

- Vendor hetzner module (Stage-1, trimmed to @pulumi/hcloud+js-yaml; dropped unused
  types.ts + bcrypt/axios/tls/vault deps). GOTCHA documented: cloud-init moves SSH
  to port 222.
- provision/: isolated stack (platformName foundation-test, no collision with
  olsicloud4-*) — one cx23 in nbg1-dc3 + firewall (222/80/443/2222) + Docker cloud-init.
  Dedicated throwaway ed25519 key (operator id_rsa already registered → uniqueness_error).
- Provisioned + verified: foundation-test @ 91.98.117.152, Docker 29.6.1, docker-over-SSH OK.

Token via ENV (pass), never committed; provision/state gitignored.

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

packages/pulumi-hetzner/tsconfig.json

@@ -0,0 +1,27 @@
+{
+    "compilerOptions": {
+        "strict": true,
+        "outDir": "bin",
+        "target": "es2020",
+        "module": "commonjs",
+        "moduleResolution": "node",
+        "sourceMap": true,
+        "experimentalDecorators": true,
+        "pretty": true,
+        "noFallthroughCasesInSwitch": true,
+        "noImplicitReturns": true,
+        "forceConsistentCasingInFileNames": true,
+        "declaration": true,
+        "declarationMap": true
+    },
+    "include": [
+        "**/*.ts"
+    ],
+    "exclude": [
+        "node_modules",
+        "bin",
+        "build",
+        "out",
+        "_test_"
+    ]
+}