feat: add local data for testing

Author: 94noni

CONTRIBUTING.md

@@ -37,8 +37,16 @@ internal/
   model/             State management, derived metrics, percentiles
   ui/                Bubble Tea TUI components (dashboard, tables, graphs)
   exporter/          Prometheus metrics export
+local/               Local data for testing
 ```
 
+> [!NOTE]
+> You can start a local FrankenPHP instance for fast testing:
+>
+> ```bash
+> cd local && make local
+> ```
+
 ## Running Tests
 
 ```bash

local/Caddyfile

@@ -0,0 +1,12 @@
+{
+	auto_https off
+	admin 0.0.0.0:2019
+	metrics
+	frankenphp
+}
+
+:8080 {
+	root * /app/public
+	rewrite * /index.php
+	php
+}

local/Makefile

@@ -0,0 +1,14 @@
+.DEFAULT_GOAL := help
+
+.PHONY: local clean help
+
+local: ## Start docker compose via build & up in the local folder
+	@command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is not installed. Please install it."; exit 1; }
+	docker compose build && docker compose up -d
+
+clean: ## Clean docker compose in the local folder
+	@command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is not installed. Please install it."; exit 1; }
+	docker compose down
+
+help: ## Show this help
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-12s\033[0m %s\n", $$1, $$2}'

local/compose.yaml

@@ -0,0 +1,9 @@
+services:
+  frankenphp:
+    image: dunglas/frankenphp:latest
+    ports:
+      - "8080:8080"
+      - "2019:2019"
+    volumes:
+      - ./public:/app/public
+      - ./Caddyfile:/etc/frankenphp/Caddyfile

local/public/index.php

@@ -0,0 +1,9 @@
+<?php
+
+$ms = \random_int(10, 350);
+\usleep($ms * 1000);
+\header('Content-Type: application/json');
+echo \json_encode([
+    'ms' => $ms,
+    'uniqid' => \uniqid(),
+]);