feat: vendor midstream and sublinear-time-solver libraries (#109)

Add ruvnet/midstream (AIMDS real-time inference) and
ruvnet/sublinear-time-solver (sublinear optimization algorithms)
as vendored dependencies under vendor/.

vendor/sublinear-time-solver/.claude/helpers/github-setup.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# Setup GitHub integration for Claude Flow
+
+echo "🔗 Setting up GitHub integration..."
+
+# Check for gh CLI
+if ! command -v gh &> /dev/null; then
+    echo "⚠️  GitHub CLI (gh) not found"
+    echo "Install from: https://cli.github.com/"
+    echo "Continuing without GitHub features..."
+else
+    echo "✅ GitHub CLI found"
+    
+    # Check auth status
+    if gh auth status &> /dev/null; then
+        echo "✅ GitHub authentication active"
+    else
+        echo "⚠️  Not authenticated with GitHub"
+        echo "Run: gh auth login"
+    fi
+fi
+
+echo ""
+echo "📦 GitHub swarm commands available:"
+echo "  - npx claude-flow github swarm"
+echo "  - npx claude-flow repo analyze"
+echo "  - npx claude-flow pr enhance"
+echo "  - npx claude-flow issue triage"