refactor(examples): move example files to data/examples

Relocates all example YAML files from the `examples/` directory to `data/examples/`.
Updates `docs/schema-design.md` to reflect the new path for example files.

data/examples/project.yaml

@@ -0,0 +1,72 @@
+# Example Project Entry
+# Projects are standalone applications and utilities built for/with OpenCode.
+# These are complete apps, not extensions.
+# Place actual entries in: data/projects/your-project-name.yaml
+
+# ============================================================================
+# REQUIRED FIELDS
+# ============================================================================
+
+name: Example OpenCode Dashboard
+repo: https://github.com/example/opencode-dashboard
+tagline: Web-based dashboard for monitoring OpenCode sessions
+description: |
+  A standalone web application for monitoring and managing
+  OpenCode sessions across multiple projects.
+  
+  Features:
+  - Real-time session monitoring
+  - Token usage analytics
+  - Multi-project overview
+
+# ============================================================================
+# OPTIONAL FIELDS
+# ============================================================================
+
+# Scope is often not relevant for standalone projects
+# Include only if the project can be installed globally vs per-project
+
+tags:
+  - dashboard
+  - monitoring
+  - web-ui
+  - analytics
+
+min_version: "1.0.0"
+
+homepage: https://example.com/opencode-dashboard
+
+installation: |
+  ## Prerequisites
+  - Node.js 18+
+  - OpenCode 1.0.0 or later
+
+  ## Installation
+  ```bash
+  # Clone the repository
+  git clone https://github.com/example/opencode-dashboard
+  cd opencode-dashboard
+
+  # Install dependencies
+  npm install
+
+  # Start the dashboard
+  npm start
+  ```
+
+  ## Configuration
+  Create a `.env` file:
+  ```bash
+  OPENCODE_LOG_DIR=~/.config/opencode/logs
+  PORT=3000
+  ```
+
+  ## Usage
+  Open `http://localhost:3000` in your browser.
+
+  ## Docker (Alternative)
+  ```bash
+  docker run -p 3000:3000 \
+    -v ~/.config/opencode:/opencode:ro \
+    example/opencode-dashboard
+  ```