release: cut v0.1.0

Mark the package private:true so 'npm publish' can't fire by
accident — we want to soak this release with a small group of EMs
before going to the public registry. The version stays at 0.1.0;
private flips back to false (or comes off entirely) when we're
ready to publish.

Move the Unreleased CHANGELOG section into a dated [0.1.0] heading
and update the compare/tag links to span v0.1.0-preview → v0.1.0.

Author: Srikanth-AD

CHANGELOG.md

@@ -6,20 +6,28 @@ the project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+_Nothing yet._
+
+## [0.1.0] — 2026-04-07
+
 ### Added
-- Biome for linting and formatting (replaces a future need for
-  ESLint + Prettier with a single dependency).
+- Biome for linting and formatting (one dependency replaces both
+  ESLint and Prettier).
 - `node:test` unit suites for the four pure modules (`config`,
   `logger`, `policyLoader`, `checker`) — 27 tests, no API key needed.
-- CI now runs Biome and the test suite on every push and PR.
-- GitHub issue templates for bug reports and feature requests.
+- CI runs Biome and the test suite on every push and PR across
+  Node 20/22 on Linux and macOS.
+- GitHub issue templates for bug reports and feature requests, plus
+  a Discussions link for open-ended questions.
 - This `CHANGELOG.md`.
 
 ### Changed
 - `extractJson` and a new `applyLowConfidenceOverride` helper are
   now exported from `checker.ts` so the JSON-extraction and
   low-confidence flip logic can be unit-tested without hitting the
   Anthropic API.
+- Marked the package `"private": true` in `package.json` to prevent
+  accidental `npm publish` while we soak v0.1.0 with internal users.
 
 ## [0.1.0-preview] — 2026-04-07
 
@@ -48,5 +56,6 @@ Initial public preview.
   log format choices
 - GitHub Actions CI on Node 20/22, Linux + macOS
 
-[Unreleased]: https://github.com/Srikanth-AD/stackguard/compare/v0.1.0-preview...HEAD
+[Unreleased]: https://github.com/Srikanth-AD/stackguard/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/Srikanth-AD/stackguard/compare/v0.1.0-preview...v0.1.0
 [0.1.0-preview]: https://github.com/Srikanth-AD/stackguard/releases/tag/v0.1.0-preview

package.json

@@ -1,6 +1,7 @@
 {
   "name": "stackguard",
   "version": "0.1.0",
+  "private": true,
   "description": "Pre-prompt policy enforcement for AI coding assistants. Checks developer prompts against company engineering guidelines before they reach the AI.",
   "bin": {
     "stackguard": "./dist/index.js"