feat(opencode): complete MMA setup with conductor workflow

- Add product.md and product-guidelines.md to instructions for full context
- Configure MCP server exposing 27 tools (file ops, Python AST, git, web, shell)
- Add steps limits: tier1-orchestrator (50), tier2-tech-lead (100)
- Update Tier 2 delegation templates for OpenCode Task tool syntax

.opencode/agents/tier1-orchestrator.md

@@ -3,6 +3,7 @@ description: Tier 1 Orchestrator for product alignment, high-level planning, and
 mode: primary
 model: zai/glm-5
 temperature: 0.1
+steps: 50
 tools:
   write: false
   edit: false