chore: cut v5.0.0 workflows release and maintenance updates

Prepare release 5.0.0 by documenting the new Workflows foundation, bumping package metadata, refreshing release notes, and extending MAINTENANCE guidance for workflows consistency and issue-closing protocol.

Co-authored-by: Cursor <cursoragent@cursor.com>

release_notes.md

@@ -1,36 +1,36 @@
-## [4.10.0] - 2026-02-06 - "Composio Automation + .NET Backend"
+## [5.0.0] - 2026-02-10 - "Antigravity Workflows Foundation"
 
-> This release significantly expands hands-on automation coverage while adding a production-oriented .NET backend skill.
+> First-class Workflows are now available to orchestrate multiple skills through guided execution playbooks.
 
-### Added
+### 🚀 New Skills
 
-- **79 new skills total**.
-- **78 Composio/Rube automation skills** (PR #64), covering practical workflows across:
-- CRM/sales (`HubSpot`, `Salesforce`, `Pipedrive`, `Zoho CRM`, `Close`)
-- Collaboration/project ops (`Notion`, `ClickUp`, `Asana`, `Jira`, `Confluence`, `Trello`, `Monday`)
-- Messaging/support (`Slack`, `Discord`, `Teams`, `Intercom`, `Freshdesk`, `Zendesk`)
-- Analytics/marketing (`Google Analytics`, `Mixpanel`, `PostHog`, `Segment`, `Mailchimp`, `Klaviyo`)
-- Dev/infra operations (`GitHub`, `GitLab`, `CircleCI`, `Datadog`, `PagerDuty`, `Vercel`, `Render`)
-- **1 new `dotnet-backend` skill** (PR #65) with detailed ASP.NET Core 8+ guidance:
-- Minimal API and controller patterns
-- EF Core data-access patterns
-- JWT authentication implementation
-- Background service templates
-- Explicit "When to Use" and "Limitations" sections
-- **Registry growth**: 634 -> 713 indexed skills.
+### 🧭 [antigravity-workflows](skills/antigravity-workflows/)
 
-### Changed
+**Orchestrates multi-step outcomes using curated workflow playbooks.**
+This new skill routes users from high-level goals to concrete execution steps across related skills and bundles.
 
-- Regenerated and synchronized discovery artifacts:
-- `README.md`
-- `skills_index.json`
-- `CATALOG.md`
-- `data/catalog.json`
-- `data/bundles.json`
-- `data/aliases.json`
-- Updated release metadata and published tag/release `v4.10.0`.
+- **Key Feature 1**: Workflow routing for SaaS MVP, Security Audit, AI Agent Systems, and Browser QA.
+- **Key Feature 2**: Explicit step-by-step outputs with prerequisites, recommended skills, and validation checkpoints.
 
-### Contributors
+> **Try it:** `Use @antigravity-workflows to run ship-saas-mvp for my project.`
 
-- [@sohamganatra](https://github.com/sohamganatra)
-- [@Nguyen-Van-Chan](https://github.com/Nguyen-Van-Chan)
+---
+
+## 📦 Improvements
+
+- **Workflow Registry**: Added `data/workflows.json` for machine-readable workflow metadata.
+- **Workflow Docs**: Added `docs/WORKFLOWS.md` to distinguish Bundles vs Workflows and provide practical execution playbooks.
+- **Trinity Sync**: Updated `README.md`, `docs/GETTING_STARTED.md`, and `docs/FAQ.md` for workflow onboarding.
+- **Go QA Path**: Added optional `@go-playwright` wiring in QA/E2E workflow steps.
+- **Registry Update**: Catalog regenerated; repository now tracks 714 skills.
+
+## 👥 Credits
+
+A huge shoutout to our community and maintainers:
+
+- **@Walapalam** for the Workflows concept request ([Issue #72](https://github.com/sickn33/antigravity-awesome-skills/issues/72))
+- **@sickn33** for workflow integration, release preparation, and maintenance updates
+
+---
+
+_Upgrade now: `git pull origin main` to fetch the latest skills._