Add logger module, services, and package files

Introduce a new logger (modules/logger.js) that prints colorized console output, writes timestamped logs to a file in a logs/ directory, strips ANSI colors for file output, and handles process exit/SIGINT cleanup. Add service stubs (services/security.js, services/storage.js, services/smtp/actions.js, services/smtp/authenticate.js) and a test.js. Add package.json and package-lock.json with runtime deps (colors, dotenv, zod) and dev tooling (eslint, nodemon) to support the new code.

modules/logger.js

@@ -0,0 +1,92 @@
+const fs = require("node:fs")
+const path = require("node:path")
+require("colors")
+require("dotenv").config({
+    quiet: true
+})
+
+function cleanup($stream) {
+    if (!$stream.destroyed) {
+        $stream.end()
+    }
+}
+
+function write($stream, level, color, content, extraLabels = []) {
+    const date = new Date().toISOString()
+    const message = typeof content === "string" ? content : JSON.stringify(content, null, 2)
+
+    let consoleLabels = ""
+    let fileLabels = ""
+
+    if (Array.isArray(extraLabels) && extraLabels.length > 0) {
+        for (let i = 0; i < extraLabels.length; i += 2) {
+            const labelName = extraLabels[i]
+            const labelColor = extraLabels[i + 1]
+            if (labelName) {
+                fileLabels += ` [${labelName}]`
+                if (labelColor && labelName[labelColor]) {
+                    consoleLabels += ` [${labelName[labelColor]}]`
+                } else {
+                    consoleLabels += ` [${labelName.white}]`
+                }
+            }
+        }
+    }
+
+    // eslint-disable-next-line no-console
+    console.log(`[${date}] `.magenta + `[${level}]`[color] + consoleLabels + " " + message)
+    $stream.write(`[${date}] [${level}]${fileLabels} ${stripColors(message)}\n`)
+}
+
+function createLogger(root) {
+    // eslint-disable-next-line no-useless-escape
+    const fileName = isTrueFromDotEnv("IS_PROD") ? new Date().toLocaleString("fr-FR", { timeZone: "UTC" }).replace(/[\/:]/g, "-").replace(/ /g, "_") : "DEV-LOG"
+
+    const logsDir = path.join(root, "logs")
+
+    if (!fs.existsSync(logsDir)) {
+        fs.mkdirSync(logsDir, { recursive: true })
+    }
+
+    const stream = fs.createWriteStream(path.join(logsDir, `${fileName}.log`), { flags: "a" })
+
+    process.on("exit", () => {
+        cleanup(stream)
+    })
+
+    process.on("SIGINT", () => {
+        cleanup(stream)
+        process.exit()
+    })
+
+    return {
+        log: (content, labels) => {
+            write(stream, "INFO", "green", content, labels)
+        },
+        error: (content, labels) => {
+            write(stream, "ERROR", "red", content, labels)
+        },
+        warn: (content, labels) => {
+            write(stream, "WARN", "yellow", content, labels)
+        },
+        debug: (content, labels) => {
+            write(stream, "DEBUG", "white", content, labels)
+        }
+    }
+}
+
+function isTrueFromDotEnv(key) {
+    return (process.env[key] || "").trim().toLowerCase() === "true"
+}
+
+function stripColors(string) {
+    if (!string || typeof string !== "string") {
+        return string
+    }
+    // eslint-disable-next-line no-control-regex
+    return string.replace(/\x1B\[[0-9;]*[mK]/g, "")
+}
+
+const logger = createLogger(process.cwd())
+
+module.exports = logger