Add Nebot plugin with chat UI and adaptive typing

Introduces the Nebot plugin, including main process logic for chat session management, IPC handlers, and Ollama API integration. Adds a dedicated chat UI with adaptive typing animation, markdown rendering, settings modal, and supporting assets (CSS, HTML, JS, markdown bundle). Includes documentation for model selection and testing instructions.

plugins/nebot/plugin.json

@@ -0,0 +1,14 @@
+{
+  "id": "nebot-chat",
+  "name": "Nebot",
+  "version": "0.1.0",
+  "description": "Nebot: a floating chat panel that talks to a local/remote Ollama server and saves chats in the plugin folder.",
+  "main": "main.js",
+  "rendererPreload": "renderer-preload.js",
+  "categories": ["AI", "Chat", "Utilities"],
+  "authors": [
+    { "name": "Nebula Team", "email": "andrewzambazos@gmail.com" },
+    "Bobbybear007"
+  ],
+  "enabled": true
+}