docs: add ecosystem page with related repos

- Add docs/ECOSYSTEM.md with links to:
  - @framers/agentos (main SDK)
  - @framers/sql-storage-adapter (SQL storage)
  - @framers/agentos-extensions (extensions registry)
  - agentos.sh (website)
  - agentos-workbench (dev tools)
- Update docs/README.md index with ecosystem section

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

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

Author: jddunn

docs/ECOSYSTEM.md

@@ -0,0 +1,128 @@
+# AgentOS Ecosystem
+
+> Related repositories, packages, and resources for building with AgentOS.
+
+---
+
+## Core Packages
+
+### [@framers/agentos](https://github.com/framersai/agentos)
+**Main SDK** — The core orchestration runtime for building adaptive AI agents.
+
+```bash
+npm install @framers/agentos
+```
+
+[![npm](https://img.shields.io/npm/v/@framers/agentos?logo=npm&color=cb3837)](https://www.npmjs.com/package/@framers/agentos)
+[![GitHub](https://img.shields.io/github/stars/framersai/agentos?style=social)](https://github.com/framersai/agentos)
+
+---
+
+### [@framers/sql-storage-adapter](https://github.com/framersai/sql-storage-adapter)
+**SQL Storage** — Cross-platform SQL storage abstraction with automatic fallbacks. Supports SQLite, PostgreSQL, and in-memory storage.
+
+```bash
+npm install @framers/sql-storage-adapter
+```
+
+[![npm](https://img.shields.io/npm/v/@framers/sql-storage-adapter?logo=npm&color=cb3837)](https://www.npmjs.com/package/@framers/sql-storage-adapter)
+[![GitHub](https://img.shields.io/github/stars/framersai/sql-storage-adapter?style=social)](https://github.com/framersai/sql-storage-adapter)
+
+**Features:**
+- SQLite (better-sqlite3, sql.js for browser)
+- PostgreSQL (pg)
+- Automatic runtime detection
+- Vector storage support for RAG
+
+---
+
+### [@framers/agentos-extensions](https://github.com/framersai/agentos-extensions)
+**Extensions Registry** — Community registry of tools, workflows, guardrails, and integrations.
+
+```bash
+npm install @framers/agentos-extensions
+```
+
+[![npm](https://img.shields.io/npm/v/@framers/agentos-extensions?logo=npm&color=cb3837)](https://www.npmjs.com/package/@framers/agentos-extensions)
+[![GitHub](https://img.shields.io/github/stars/framersai/agentos-extensions?style=social)](https://github.com/framersai/agentos-extensions)
+
+**Extension Types:**
+- **Tools** — Custom agent capabilities
+- **Guardrails** — Safety and validation rules
+- **Workflows** — Multi-step process definitions
+- **Personas** — Agent personality templates
+- **Memory Providers** — Custom storage backends
+
+---
+
+## Applications
+
+### [agentos.sh](https://github.com/framersai/agentos.sh)
+**Documentation Website** — Official documentation and marketing site.
+
+🌐 **Live:** [agentos.sh](https://agentos.sh)
+
+---
+
+### [agentos-workbench](https://github.com/framersai/agentos-workbench)
+**Development Workbench** — Visual development environment for building and testing AgentOS agents.
+
+**Features:**
+- Interactive agent playground
+- Tool testing interface
+- Conversation history viewer
+- Real-time streaming visualization
+
+---
+
+## Quick Links
+
+| Resource | Link |
+|----------|------|
+| Documentation | [agentos.sh/docs](https://agentos.sh/docs) |
+| API Reference | [agentos-live-docs branch](https://github.com/framersai/agentos/tree/agentos-live-docs) |
+| npm | [@framers/agentos](https://www.npmjs.com/package/@framers/agentos) |
+| Discord | [Join Community](https://discord.gg/agentos) |
+| Twitter | [@framersai](https://twitter.com/framersai) |
+
+---
+
+## Contributing
+
+We welcome contributions to any repository in the ecosystem:
+
+1. **Bug reports** — [Open an issue](https://github.com/framersai/agentos/issues)
+2. **Feature requests** — [Start a discussion](https://github.com/framersai/agentos/discussions)
+3. **Extensions** — Submit to [agentos-extensions](https://github.com/framersai/agentos-extensions)
+4. **Documentation** — PRs welcome on any repo
+
+---
+
+## Architecture Overview
+
+```
+┌─────────────────────────────────────────────────────────────┐
+│                      Your Application                        │
+└─────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────┐
+│                    @framers/agentos                          │
+│  ┌─────────────┐  ┌─────────────┐  ┌─────────────────────┐  │
+│  │   AgentOS   │  │     GMI     │  │   Tool Orchestrator │  │
+│  │   Runtime   │  │   Manager   │  │                     │  │
+│  └─────────────┘  └─────────────┘  └─────────────────────┘  │
+└─────────────────────────────────────────────────────────────┘
+          │                   │                    │
+          ▼                   ▼                    ▼
+┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐
+│ sql-storage-    │  │    agentos-     │  │   LLM Providers │
+│ adapter         │  │    extensions   │  │  (OpenAI, etc.) │
+└─────────────────┘  └─────────────────┘  └─────────────────┘
+```
+
+---
+
+<p align="center">
+  <sub>Part of the <a href="https://agentos.sh">AgentOS</a> ecosystem by <a href="https://frame.dev">Frame.dev</a></sub>
+</p>

docs/README.md

@@ -51,6 +51,10 @@
 ### Platform & Infrastructure
 - [**Platform Support**](./PLATFORM_SUPPORT.md) — Supported environments and requirements
 
+### Ecosystem
+- [**Ecosystem**](./ECOSYSTEM.md) — Related packages, extensions, and resources
+- [**Releasing**](./RELEASING.md) — Automated release process
+
 ### API Reference
 - [**TypeDoc API**](./api/index.html) — Auto-generated API documentation