chore(release): version packages (#228)

* Version Packages

* chore: trigger CI

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Tabish Bidiwale <[email protected]>

Author: github-actions[bot]

.changeset/ai-assistants-and-fixes.md

@@ -1,5 +1,34 @@
 # @fission-ai/openspec
 
+## 0.13.0
+
+### Minor Changes
+
+- 668a125: Add support for multiple AI assistants and improve validation
+
+  This release adds support for several new AI coding assistants:
+
+  - CodeBuddy Code - AI-powered coding assistant
+  - CodeRabbit - AI code review assistant
+  - Cline - Claude-powered CLI assistant
+  - Crush AI - AI assistant platform
+  - Auggie (Augment CLI) - Code augmentation tool
+
+  New features:
+
+  - Archive slash command now supports arguments for more flexible workflows
+
+  Bug fixes:
+
+  - Delta spec validation now handles case-insensitive headers and properly detects empty sections
+  - Archive validation now correctly honors --no-validate flag and ignores metadata
+
+  Documentation improvements:
+
+  - Added VS Code dev container configuration for easier development setup
+  - Updated AGENTS.md with explicit change-id notation
+  - Enhanced slash commands documentation with restart notes
+
 ## 0.12.0
 
 ### Minor Changes

CHANGELOG.md

@@ -1,6 +1,6 @@
 {
   "name": "@fission-ai/openspec",
-  "version": "0.12.0",
+  "version": "0.13.0",
   "description": "AI-native system for spec-driven development",
   "keywords": [
     "openspec",