Implements the analyze_profile MCP tool with TDD: exports Analyze() for
direct testing, wraps it in AnalyzeHandler() for MCP, and adds AnalyzeTool()
for the schema definition. Adds mark3labs/mcp-go v0.52.0 dependency.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Two-pass parser resolves forward cfn= references; all cost lines
(including call edges) are accumulated as inclusive costs per function.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
