chore(release): Bump version to 2026.01.16.0

Update VERSION and CHANGELOG.md:
- New versioning scheme: YYYY.MM.DD.N (increments per daily commit)
- Added proc-doc blocks for ~30 functions
- Added claude-gates.yml CI workflow
- Updated config files and tooling
- Removed deprecated workflows
- Various fixes for ShellCheck and IFS

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: tatanus

CHANGELOG.md

@@ -5,3 +5,36 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2026.01.16.0] - 2026-01-16
+
+### Added
+- Proc-doc blocks for ~30 functions across dotfiles and tools
+- CI workflow `claude-gates.yml` for automated gate validation
+- `.markdownlintignore` for markdown linting exclusions
+
+### Changed
+- Updated `.editorconfig` with standardized formatting rules
+- Updated `.gitattributes` with language detection hints
+- Updated `.gitignore` for `.claude/` infrastructure patterns
+- Updated `.shellcheckrc` configuration
+- Updated `.markdownlint.yaml` with relaxed linting rules
+- Improved `tools/compile.sh` with full proc-doc coverage
+- Improved `tools/check_bash_style.sh` style checks
+- Updated test helpers in `tests/helpers/common.bash`
+
+### Removed
+- Deprecated `codacy.yml` workflow
+- Deprecated `main.yml` workflow
+
+### Fixed
+- ShellCheck suppressions for external variables in dotfiles
+- SC2034 suppression for unimplemented quiet mode in install.sh
+- IFS assignments added where missing
+
+## [1.0.0] - 2024-12-08
+
+### Added
+- Initial release of bash_setup dotfiles installer
+- Install, update, and uninstall commands
+- Checksum-based change detection
+- Automatic backup management

VERSION

@@ -1 +1 @@
-1.0.0
+2026.01.16.0