docs: add CHANGELOG.md for v1.7.0 release

Added comprehensive changelog documenting all improvements
in v1.7.0 including:
- Recursive directory support (pkg/...)
- Go 1.22+ modernization
- Template improvements (t.Fatalf, embed)
- Import path bug fixes
- CI/CD updates

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: cweill

CHANGELOG.md

@@ -0,0 +1,53 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.7.0] - 2025-10-20
+
+### Added
+- **Recursive directory support**: You can now use patterns like `pkg/...` to generate tests for all Go files in a directory tree (fixes #186)
+- Documentation for the `-named` flag in README (PR #185)
+- CLAUDE.md for AI-assisted development context
+- `t.Parallel()` at the top-level test function when `-parallel` flag is used (fixes #188)
+
+### Changed
+- **BREAKING**: Minimum Go version increased from 1.6 to 1.22
+  - Leverages Go 1.22's per-iteration loop variable scoping
+  - Removes unnecessary `tt := tt` and `name := name` shadowing in generated tests
+  - Cleaner, more modern generated test code
+- **Template Error Handling**: Use `t.Fatalf()` instead of `t.Errorf() + return` in subtests with return values (PR #184)
+  - Better test ergonomics and clearer failure semantics
+  - Prevents misleading test output when errors occur
+- **Dependencies**: Replaced third-party bindata tools with stdlib `embed` package (PR #181)
+  - Removed 834+ lines of generated code
+  - Simplified build process (no more `go generate` needed)
+  - Better maintainability and reduced dependencies
+- **Installation**: Updated README to use `go install` instead of deprecated `go get` (PR #180)
+- **CI/CD**: Updated GitHub Actions workflow
+  - Now tests only Go 1.22.x and 1.23.x (down from 8 versions)
+  - Updated actions/setup-go v2→v5
+  - Updated actions/checkout v2→v4
+  - Simplified coverage reporting with coverallsapp/github-action@v2
+
+### Fixed
+- **Import Path Bug**: Fixed missing import paths when receiver types and methods are defined in different files (PR #179)
+  - Now correctly collects imports from all files in the package
+  - Prevents compilation errors in generated test files
+- **t.Parallel() Placement**: Moved `t.Parallel()` to the correct location at the top of test functions
+  - Satisfies `tparallel` linter requirements
+  - Ensures proper parallel test execution
+
+### Removed
+- Support for Go versions older than 1.22
+- Bindata dependency (go-bindata, esc) in favor of stdlib embed
+- Unnecessary loop variable shadowing in generated tests
+
+## [1.6.0] - 2020-XX-XX
+
+Previous release (pre-changelog).
+
+[1.7.0]: https://github.com/cweill/gotests/compare/v1.6.0...v1.7.0
+[1.6.0]: https://github.com/cweill/gotests/releases/tag/v1.6.0