chore: Remove node_modules, dist, .env from tracking

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

node_modules/ajv/.runkit_example.js

@@ -1,23 +0,0 @@
-const Ajv = require("ajv")
-const ajv = new Ajv({allErrors: true})
-
-const schema = {
-  type: "object",
-  properties: {
-    foo: {type: "string"},
-    bar: {type: "number", maximum: 3},
-  },
-  required: ["foo", "bar"],
-  additionalProperties: false,
-}
-
-const validate = ajv.compile(schema)
-
-test({foo: "abc", bar: 2})
-test({foo: 2, bar: 4})
-
-function test(data) {
-  const valid = validate(data)
-  if (valid) console.log("Valid!")
-  else console.log("Invalid: " + ajv.errorsText(validate.errors))
-}