feat: add changelog

Author: runkids

.gitignore

@@ -17,6 +17,7 @@ Thumbs.db
 *.test
 coverage.out
 
+.agents
 .claude
 .feature-radar
 .mdproof/

CHANGELOG.md

@@ -0,0 +1,36 @@
+# Changelog
+
+## [0.0.3] - 2026-03-11
+
+### New Features
+
+- **JUnit XML output** — `--report junit` produces JUnit XML for native CI test result display (GitHub Actions, GitLab CI, Jenkins)
+  ```bash
+  mdproof --report junit tests/          # stdout
+  mdproof --report junit -o report.xml tests/  # file output
+  ```
+
+## [0.0.2] - 2026-03-11
+
+### Bug Fixes
+
+- **Negated assertion matching** — negated patterns (`Should NOT contain FAIL`) now use word boundary matching, so `FAIL` no longer falsely matches `failed` or `0 failed`
+
+## [0.0.1] - 2026-03-11
+
+Initial release.
+
+- **Markdown-native test runner** — write tests as Markdown, run them as real tests
+- **Persistent bash sessions** — env vars and exports flow across steps
+- **Five assertion types** — substring, exit_code, regex, jq, snapshot
+- **Negated assertions** — `Should NOT contain`, `No error`, `Must NOT match`
+- **Snapshot testing** — `snapshot:` assertions with `--update-snapshots` / `-u`
+- **Inline testing** — `--inline` mode tests code examples in any `.md` file
+- **Coverage analysis** — `--coverage` and `--coverage-min` for CI gating
+- **Watch mode** — `--watch` re-runs on file changes
+- **Sandbox mode** — `mdproof sandbox` auto-provisions a container for safe execution
+- **Step filtering** — `--steps 1,3,5` and `--from N`
+- **Lifecycle hooks** — `--build`, `--setup`, `--teardown`
+- **JSON output** — `--report json` and `-o` for programmatic consumption
+- **Container-first safety** — `--strict` (default) refuses execution outside containers
+- **Self-update** — `mdproof upgrade`