[plan] Add examples to MCP configuration schema

[github-actions]

Objective

Add inline examples to the MCP configuration schema, which currently has zero examples despite being one of the more complex configuration areas.

Context

This is Issue #8 (Medium) from the schema audit. While main_workflow_schema has 76 examples and included_file_schema has 3 examples, mcp_config_schema.json has 0 examples. This makes MCP server configuration harder to discover and use.

Approach

Add examples fields to key MCP configuration properties, focusing on common server types and configurations.

Files to Modify

• pkg/parser/schemas/mcp_config_schema.json

Key Fields to Add Examples

1. Root MCP server configuration

   "examples": [
     {"stdio": {"command": "npx", "args": ["-y", "`@modelcontextprotocol/server-filesystem`", "/tmp"]}},
     {"http": {"url": "(redacted), "headers": {"Authorization": "Bearer token"}}}
   ]

2. stdio configuration

   "examples": [
     {"command": "npx", "args": ["-y", "`@modelcontextprotocol/server-github`"]},
     {"command": "docker", "args": ["run", "-i", "my-mcp-server"]}
   ]

3. http configuration

   "examples": [
     {"url": "(redacted),
     {"url": "(redacted), "headers": {"X-API-Key": "secret"}}
   ]

4. env configuration

   "examples": [
     {"GITHUB_TOKEN": "${{ secrets.GITHUB_TOKEN }}"},
     {"API_KEY": "${{ secrets.CUSTOM_API_KEY }}", "LOG_LEVEL": "debug"}
   ]

Acceptance Criteria

• At least 4-5 key configuration areas have examples
• Examples cover both stdio and http MCP server types
• Examples demonstrate common patterns (npx, docker, headers, env)
• Examples are valid according to schema constraints
• Schema validation still passes
• Run make build to verify embedded schema compiles

Estimated Effort

30-45 minutes

AI generated by Plan Command for discussion #8130