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/learning.json

@@ -0,0 +1,17 @@
+{
+  "initialized": "2026-05-19T00:18:20.864Z",
+  "routing": {
+    "accuracy": 0,
+    "decisions": 0
+  },
+  "patterns": {
+    "shortTerm": 0,
+    "longTerm": 0,
+    "quality": 0
+  },
+  "sessions": {
+    "total": 0,
+    "current": null
+  },
+  "_note": "Intelligence grows as you use Ruflo"
+}