chore: Remove node_modules, dist, .env from tracking

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/ajv/dist/runtime/validation_error.d.ts

@@ -1,7 +0,0 @@
-import type { ErrorObject } from "../types";
-export default class ValidationError extends Error {
-    readonly errors: Partial<ErrorObject>[];
-    readonly ajv: true;
-    readonly validation: true;
-    constructor(errors: Partial<ErrorObject>[]);
-}