Create elements_docs.md

Author: gvbvdxxalt2

src/gp2/elements_docs.md

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+# 🛠 GP2 Elements Engine Documentation
+**Location:** `./src/gp2/elements.js`
+
+This is the custom rendering engine for Random Rants +. It allows us to build the UI using lightweight JS objects (JSON) instead of heavy frameworks like React.
+
+---
+
+## 🚀 Basic Usage
+To create an element, pass an array of objects to elements.createElementsFromJSON().
+
+const elements = require('./gp2/elements.js');
+
+const myUI = elements.createElementsFromJSON([
+  {
+    element: "div",
+    className: "rant-container",
+    style: {
+      padding: "10px",
+      backgroundColor: "#222"
+    },
+    children: [
+      {
+        element: "h1",
+        textContent: "Hello Rant World!",
+        style: { color: "cyan" }
+      }
+    ]
+  }
+]);
+
+document.body.append(...myUI);
+
+---
+
+## 🔑 Special Properties
+
+- element: The HTML tag name (e.g., "div", "button", "input").
+- gid: Global ID. Stores the element in __GP_elements. Access it later via elements.getGPId("id").
+- children: An array of more element objects to nest inside this one.
+- style: An object of CSS properties (e.g., { color: "red" }).
+- styleProperties: Uses style.setProperty. Good for CSS variables like --user-color.
+- eventListeners: An array of objects: [{ event: "click", func: myFunc }].
+- GPWhenCreated: A function that runs as soon as the element is made. "this" refers to the element.
+- dangerouslySetInnerHTML: Used to inject raw HTML. (Replaces the deprecated innerHTML).
+
+---
+
+## 🛠 Advanced Example: Interactive Component
+Use GPWhenCreated and eventListeners to make things interactive.
+
+const chatInput = elements.createElementsFromJSON([
+  {
+    element: "input",
+    gid: "main-input", 
+    placeholder: "Type a rant...",
+    eventListeners: [
+      {
+        event: "keydown",
+        func: (e) => { if(e.key === "Enter") console.log("Sent!"); }
+      }
+    ],
+    GPWhenCreated: function(elm) {
+      console.log("Input is ready!");
+      elm.focus();
+    }
+  }
+]);
+
+---
+
+## ⚠️ Guidelines for Contributors
+1. No React: Use this engine. It's lighter for school Chromebooks.
+2. Render Free Tier: Keep the code light. Don't cause memory leaks.
+3. Cleaning Up: If you use a gid, use elements.disposeGPId("id") if the element is removed.