feat(bundles): add editorial bundle plugins

plugins/antigravity-bundle-full-stack-developer/skills/api-patterns/versioning.md

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+# Versioning Strategies
+
+> Plan for API evolution from day one.
+
+## Decision Factors
+
+| Strategy | Implementation | Trade-offs |
+|----------|---------------|------------|
+| **URI** | /v1/users | Clear, easy caching |
+| **Header** | Accept-Version: 1 | Cleaner URLs, harder discovery |
+| **Query** | ?version=1 | Easy to add, messy |
+| **None** | Evolve carefully | Best for internal, risky for public |
+
+## Versioning Philosophy
+
+```
+Consider:
+├── Public API? → Version in URI
+├── Internal only? → May not need versioning
+├── GraphQL? → Typically no versions (evolve schema)
+├── tRPC? → Types enforce compatibility
+```