feat: mockly-hono — file-based mock API server (Hono)

File path = route. JSON/JSON5, dynamic .ts handlers + faker, templating,
stateful CRUD (pagination/sort/persist), __variants, sequence, chaos,
rate-limit, auth, validation, per-route + global proxy/record, splat routes,
X-Scenario overlays, SSE. Visual docs (Scalar) at /__docs from a live
OpenAPI 3 spec. OpenAPI import script. Zero-build via tsx.

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

routes/__test/signup.post.json

@@ -0,0 +1,5 @@
+{
+  "__validate": { "name": "string", "age": "number", "email": "string?" },
+  "__status": 201,
+  "__body": { "ok": true, "note": "POST valid body -> 201, else 422 with errors" }
+}