feat: add redirect method

examples/redirect_demo.v

@@ -0,0 +1,75 @@
+module main
+
+import hono
+import net.http
+
+fn main() {
+	mut app := hono.Hono.new()
+	
+	// Basic redirect (302 Found)
+	app.get('/redirect-basic', fn (mut c hono.Context) http.Response {
+		return c.redirect('https://example.com')
+	})
+	
+	// Redirect with custom status code (301 Moved Permanently)
+	app.get('/redirect-permanent', fn (mut c hono.Context) http.Response {
+		return c.redirect('https://example.com', 301)
+	})
+	
+	// Redirect with 303 See Other
+	app.post('/form-submit', fn (mut c hono.Context) http.Response {
+		// Process form data here...
+		// Then redirect to success page
+		return c.redirect('/success', 303)
+	})
+	
+	// Redirect with 307 Temporary Redirect (preserves method)
+	app.get('/redirect-preserve-method', fn (mut c hono.Context) http.Response {
+		return c.redirect('/new-location', 307)
+	})
+	
+	// Redirect with 308 Permanent Redirect (preserves method)
+	app.get('/redirect-permanent-preserve', fn (mut c hono.Context) http.Response {
+		return c.redirect('/new-permanent-location', 308)
+	})
+	
+	// Conditional redirect
+	app.get('/conditional-redirect', fn (mut c hono.Context) http.Response {
+		user_agent := c.req.header.get_custom('User-Agent') or { '' }
+		
+		if user_agent.contains('Mobile') {
+			return c.redirect('/mobile-version')
+		} else {
+			return c.redirect('/desktop-version')
+		}
+	})
+	
+	// Redirect to relative path
+	app.get('/relative-redirect', fn (mut c hono.Context) http.Response {
+		return c.redirect('../other-page')
+	})
+	
+	// Success page for demonstration
+	app.get('/success', fn (mut c hono.Context) http.Response {
+		return c.html('<h1>Success!</h1><p>Form submitted successfully.</p>')
+	})
+	
+	app.get('/mobile-version', fn (mut c hono.Context) http.Response {
+		return c.html('<h1>Mobile Version</h1>')
+	})
+	
+	app.get('/desktop-version', fn (mut c hono.Context) http.Response {
+		return c.html('<h1>Desktop Version</h1>')
+	})
+	
+	println('Server running on http://localhost:8080')
+	println('Try these endpoints:')
+	println('  GET  /redirect-basic           - Basic redirect (302)')
+	println('  GET  /redirect-permanent       - Permanent redirect (301)')
+	println('  POST /form-submit              - Form redirect (303)')
+	println('  GET  /redirect-preserve-method - Temporary redirect preserving method (307)')
+	println('  GET  /conditional-redirect     - Conditional redirect based on User-Agent')
+	println('  GET  /relative-redirect        - Relative path redirect')
+	
+	app.listen(':8080')
+}