feat: add HTTP server testing scripts for structured outputs

Created helper scripts for testing agentic tools via HTTP transport:

start_http_server.sh:
- Starts CodeGraph HTTP server with all features
- Shows configuration (LLM, SurrealDB, context window)
- Auto-builds if binary missing
- Default: http://127.0.0.1:3000

test_http_agentic.sh:
- Tests agentic_code_search via HTTP
- Parses and displays structured output
- Extracts components with file paths
- Shows patterns identified
- Saves full response to test_http_search_response.json

Usage:
  Terminal 1: ./start_http_server.sh
  Terminal 2: ./test_http_agentic.sh

Author: jruokola

start_http_server.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+# Start CodeGraph HTTP server with all features
+
+set -e
+
+PORT="${CODEGRAPH_HTTP_PORT:-3000}"
+HOST="${CODEGRAPH_HTTP_HOST:-127.0.0.1}"
+
+echo "🚀 Starting CodeGraph HTTP Server"
+echo "=================================================="
+echo "Host: $HOST"
+echo "Port: $PORT"
+echo ""
+echo "Features:"
+echo "  ✅ AutoAgents framework (experimental)"
+echo "  ✅ Structured outputs with JSON schemas"
+echo "  ✅ 7 agentic tools with file path enforcement"
+echo "  ✅ SSE streaming support"
+echo ""
+echo "Configuration:"
+echo "  LLM Provider: ${CODEGRAPH_LLM_PROVIDER:-ollama}"
+echo "  LLM Model: ${CODEGRAPH_MODEL:-qwen2.5-coder:14b}"
+echo "  Context Window: ${CODEGRAPH_CONTEXT_WINDOW:-32768}"
+echo ""
+echo "  SurrealDB URL: ${SURREALDB_URL:-ws://localhost:3004}"
+echo "  SurrealDB Namespace: ${SURREALDB_NAMESPACE:-codegraph}"
+echo "  SurrealDB Database: ${SURREALDB_DATABASE:-main}"
+echo ""
+echo "Press Ctrl+C to stop server"
+echo "=================================================="
+echo ""
+
+# Check if binary exists
+if [ ! -f "./target/release/codegraph" ]; then
+    echo "❌ Release binary not found. Building..."
+    echo ""
+    cargo build --release \
+        -p codegraph-mcp \
+        --bin codegraph \
+        --features "ai-enhanced,autoagents-experimental,embeddings-ollama,server-http,faiss"
+    echo ""
+    echo "✅ Build complete"
+    echo ""
+fi
+
+# Start server
+./target/release/codegraph start http --host "$HOST" --port "$PORT"

test_http_agentic.sh

@@ -0,0 +1,111 @@
+#!/bin/bash
+# Test agentic tools via HTTP transport with structured outputs
+
+set -e
+
+PORT="${CODEGRAPH_HTTP_PORT:-3000}"
+HOST="${CODEGRAPH_HTTP_HOST:-127.0.0.1}"
+BASE_URL="http://${HOST}:${PORT}"
+
+echo "🌐 Testing CodeGraph HTTP Server with Structured Outputs"
+echo "=================================================="
+echo "Server: $BASE_URL"
+echo ""
+
+# Check if server is running
+echo "1. Health Check..."
+if curl -sf "${BASE_URL}/health" > /dev/null; then
+    echo "✅ Server is running"
+else
+    echo "❌ Server not running. Start with:"
+    echo "   ./target/release/codegraph start http --port $PORT"
+    exit 1
+fi
+
+echo ""
+echo "2. Initialize MCP connection..."
+INIT_RESPONSE=$(curl -s -X POST "${BASE_URL}/mcp" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "method": "initialize",
+    "params": {
+      "protocolVersion": "2025-06-18",
+      "capabilities": {},
+      "clientInfo": {"name": "http-tester", "version": "1.0"}
+    }
+  }')
+
+echo "$INIT_RESPONSE" | jq '.' 2>/dev/null || echo "$INIT_RESPONSE"
+
+if echo "$INIT_RESPONSE" | grep -q '"result"'; then
+    echo "✅ MCP initialized"
+else
+    echo "❌ Initialize failed"
+    exit 1
+fi
+
+echo ""
+echo "3. Test agentic_code_search with structured output..."
+echo "   Query: How is configuration loaded in this codebase?"
+echo "   Expected: structured_output with components[] containing file paths"
+echo ""
+
+SEARCH_RESPONSE=$(curl -s -X POST "${BASE_URL}/mcp" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "jsonrpc": "2.0",
+    "id": 201,
+    "method": "tools/call",
+    "params": {
+      "name": "agentic_code_search",
+      "arguments": {
+        "query": "How is configuration loaded in this codebase? Find all config loading mechanisms."
+      }
+    }
+  }')
+
+# Save full response
+echo "$SEARCH_RESPONSE" > test_http_search_response.json
+echo "📁 Full response saved to: test_http_search_response.json"
+
+# Extract and display structured output
+echo ""
+echo "Response Analysis:"
+echo "=================================================="
+
+if echo "$SEARCH_RESPONSE" | jq -e '.result[0].content[0].text' > /dev/null 2>&1; then
+    RESULT_TEXT=$(echo "$SEARCH_RESPONSE" | jq -r '.result[0].content[0].text')
+
+    # Parse the result text as JSON
+    echo "$RESULT_TEXT" > /tmp/result_parsed.json
+
+    if echo "$RESULT_TEXT" | jq -e '.structured_output' > /dev/null 2>&1; then
+        echo "✅ Structured output present!"
+        echo ""
+        echo "Components found:"
+        echo "$RESULT_TEXT" | jq -r '.structured_output.components[] | "  - \(.name) in \(.file_path):\(.line_number // 0)"' 2>/dev/null | head -5
+
+        echo ""
+        echo "Patterns identified:"
+        echo "$RESULT_TEXT" | jq -r '.structured_output.patterns[]' 2>/dev/null | head -3
+
+        echo ""
+        COMP_COUNT=$(echo "$RESULT_TEXT" | jq '.structured_output.components | length' 2>/dev/null)
+        echo "Total components with file paths: $COMP_COUNT"
+        echo "Steps taken: $(echo "$RESULT_TEXT" | jq -r '.steps_taken')"
+    else
+        echo "⚠️  No structured_output field found"
+        echo "Response keys:"
+        echo "$RESULT_TEXT" | jq 'keys' 2>/dev/null || echo "$RESULT_TEXT" | head -20
+    fi
+else
+    echo "❌ Failed to extract result from response"
+    echo "$SEARCH_RESPONSE" | jq '.' 2>/dev/null || echo "$SEARCH_RESPONSE"
+fi
+
+echo ""
+echo "=================================================="
+echo "📋 Full results in: test_http_search_response.json"
+echo "💡 Inspect with: jq '.result[0].content[0].text | fromjson' test_http_search_response.json"