chore: dependency audit, cleanup stale config files, add zero-deps badge

- Bump typescript-eslint ^8.56.1 → ^8.57.0
- Remove no-op rollup override from package.json
- Delete tslint.json (TSLint deprecated since 2019, project uses ESLint)
- Clean up .npmignore: remove stale entries, add modern dev-only exclusions, include README.md in package
- Clean up .gitignore: remove stale typings/, .nyc_output/, src/*.js entries
- Add 'runtime_deps: 0' badge to README

Author: vekexasia

.gitignore

@@ -1,8 +1,5 @@
 node_modules/
-typings/
-coverage/
-.nyc_output/
-src/*.js
 dist/
-.idea
-java-test-creator/bin/
+coverage/
+.idea/
+java-test-creator/bin/

.npmignore

@@ -1,8 +1,12 @@
 src/
 test/
 .idea/
-gulpfile.js
-README.md
 tsconfig.json
-tslint.json
-java-test-creator
+java-test-creator/
+eslint.config.js
+vitest.config.ts
+tsup.config.ts
+CLAUDE.md
+MIGRATION.md
+.github/
+coverage/

README.md

@@ -3,7 +3,8 @@
 
 <img src="https://img.shields.io/badge/TypeScript-007ACC?style=for-the-badge&logo=typescript&logoColor=white"/> <img 
 src="https://img.shields.io/badge/vitest-6E9F18?style=for-the-badge&logo=vitest&logoColor=white"/> <img 
-src="https://img.shields.io/badge/eslint-3A33D1?style=for-the-badge&logo=eslint&logoColor=white"/>
+src="https://img.shields.io/badge/eslint-3A33D1?style=for-the-badge&logo=eslint&logoColor=white"/> <img
+src="https://img.shields.io/badge/runtime_deps-0-brightgreen?style=for-the-badge"/>
 
 
 An extensive port of google's s2 geometry library written in TypeScript.

package-lock.json

@@ -53,10 +53,7 @@
     "eslint": "^10.0.3",
     "tsup": "^8.5.1",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.56.1",
+    "typescript-eslint": "^8.57.0",
     "vitest": "^4.0.18"
-  },
-  "overrides": {
-    "rollup": "^4.59.0"
   }
 }