(fix) clean up root repo - move entrypoint.sh and build_admin_ui to /docker (#6110)

* fix move docker files to docker folders

* move check file length

* fix docker hub deploy

* fix clean up root

* fix circle ci config

docker/build_admin_ui.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# # try except this script
+# set -e
+
+# print current dir 
+echo
+pwd
+
+
+# only run this step for litellm enterprise, we run this if enterprise/enterprise_ui/_enterprise.json exists
+if [ ! -f "enterprise/enterprise_ui/enterprise_colors.json" ]; then
+    echo "Admin UI - using default LiteLLM UI"
+    exit 0
+fi
+
+echo "Building Custom Admin UI..."
+
+# Install dependencies
+# Check if we are on macOS
+if [[ "$(uname)" == "Darwin" ]]; then
+    # Install dependencies using Homebrew
+    if ! command -v brew &> /dev/null; then
+        echo "Error: Homebrew not found. Please install Homebrew and try again."
+        exit 1
+    fi
+    brew update
+    brew install curl
+else
+    # Assume Linux, try using apt-get
+    if command -v apt-get &> /dev/null; then
+        apt-get update
+        apt-get install -y curl
+    elif command -v apk &> /dev/null; then
+        # Try using apk if apt-get is not available
+        apk update
+        apk add curl
+    else
+        echo "Error: Unsupported package manager. Cannot install dependencies."
+        exit 1
+    fi
+fi
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
+source ~/.nvm/nvm.sh
+nvm install v18.17.0
+nvm use v18.17.0
+npm install -g npm
+
+# copy _enterprise.json from this directory to /ui/litellm-dashboard, and rename it to ui_colors.json
+cp enterprise/enterprise_ui/enterprise_colors.json ui/litellm-dashboard/ui_colors.json
+
+# cd in to /ui/litellm-dashboard
+cd ui/litellm-dashboard
+
+# ensure have access to build_ui.sh
+chmod +x ./build_ui.sh
+
+# run ./build_ui.sh
+./build_ui.sh
+
+# return to root directory
+cd ../..