feat: initial implementation of go-kite

Core framework:
- Kite router with full HTTP method support (GET, POST, PUT, DELETE, HEAD, OPTIONS, CONNECT, TRACE)
- Nestable route groups with prefix and middleware inheritance
- Global, group, and route-level middleware with onion ordering
- Centralized error, not-found, and method-not-allowed handlers
- Graceful shutdown on SIGTERM/SIGINT with configurable timeout
- Configurable server read, write, and idle timeouts
- Context with typed request/response helpers, value store, cookie, form, and body binding support
- Response writer wrapper for status code tracking

Middleware:
- Logger with configurable output, format, and skip function
- Recovery with configurable panic handler
- RequestID with configurable header and generator, forwards incoming IDs
- CORS with configurable origins, methods, headers, credentials, and max age
- MaxBodySize with configurable byte limit

Docs:
- README with quickstart, routing, middleware, context API reference, and TLS guide

middleware/logger.go

@@ -0,0 +1,51 @@
+package middleware
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"time"
+
+	"git.trcreatives.at/trcreatives/go-kite"
+)
+
+type LoggerConfig struct {
+	Output io.Writer
+	Format func(method, path string, statusCode int, latency time.Duration) string
+	Skip   func(ctx *kite.Context) bool
+}
+
+func DefaultLoggerFormat(method, path string, statusCode int, latency time.Duration) string {
+	return fmt.Sprintf("[Kite] %s %s -> %d in %s", method, path, statusCode, latency)
+}
+
+func Logger() kite.Middleware {
+	return LoggerWithConfig(LoggerConfig{})
+}
+
+func LoggerWithConfig(cfg LoggerConfig) kite.Middleware {
+	if cfg.Output == nil {
+		cfg.Output = os.Stdout
+	}
+
+	if cfg.Format == nil {
+		cfg.Format = DefaultLoggerFormat
+	}
+
+	logger := log.New(cfg.Output, "", log.LstdFlags)
+
+	return func(h kite.Handler) kite.Handler {
+		return func(ctx *kite.Context) error {
+			if cfg.Skip != nil && cfg.Skip(ctx) {
+				return h(ctx)
+			}
+
+			start := time.Now()
+			err := h(ctx)
+			logger.Println(cfg.Format(ctx.GetMethod(), ctx.GetPath(), ctx.GetStatusCode(), time.Since(start)))
+
+			return err
+		}
+	}
+}