chore(tooling): add ruflo-core scaffolding and MCP server registration

Initialised ruflo v3 via `npx @claude-flow/cli@latest init --wizard --force`.
Registers the ruflo MCP server in .mcp.json (hierarchical-mesh topology,
max 15 agents). Includes .claude-flow/ runtime config and capability manifest.

.claude/ remains gitignored (local agents/commands/settings stay per-developer).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude-flow/metrics/swarm-activity.json

@@ -0,0 +1,18 @@
+{
+  "timestamp": "2026-05-19T00:18:20.864Z",
+  "processes": {
+    "agentic_flow": 0,
+    "mcp_server": 0,
+    "estimated_agents": 0
+  },
+  "swarm": {
+    "active": false,
+    "agent_count": 0,
+    "coordination_active": false
+  },
+  "integration": {
+    "agentic_flow_active": false,
+    "mcp_active": false
+  },
+  "_initialized": true
+}