feat: light/dark theme toggle, export/import config, and UI modernization

- Add light/dark mode toggle with localStorage persistence
- Oracle-branded dark mode: deep backgrounds, vibrant status colors
- Original light mode preserved as default
- All hardcoded colors replaced with CSS custom properties
- Add full config export/import (OCI creds+keys, GenAI, MCP, prompts, settings)
- Add Terraform inline prompt editor with auto-save
- Add ADB Update Network Access and ACL display in Explorer
- Add auto-refresh after Start/Stop resource actions
- Update README with new features

README.md

@@ -23,7 +23,7 @@
 
 OCI CIS AI Agent is a self-hosted web application that automates **CIS Oracle Cloud Infrastructure Foundations Benchmark 3.0** compliance checks, powered by **OCI Generative AI** for intelligent analysis and an **MCP (Model Context Protocol)** server architecture for extensible task execution.
 
-The platform combines security compliance scanning, AI-powered chat with **RAG (Retrieval-Augmented Generation)**, infrastructure exploration, and vector-based knowledge storage into a single, containerized solution with Oracle Cloud's official light theme.
+The platform combines security compliance scanning, AI-powered chat with **RAG (Retrieval-Augmented Generation)**, infrastructure exploration, and vector-based knowledge storage into a single, containerized solution with Oracle Cloud's official theme (light/dark modes).
 
 ---
 
@@ -71,6 +71,9 @@ The platform combines security compliance scanning, AI-powered chat with **RAG (
 ### ⚡ OCI Resource Actions
 - **Start/Stop Compute Instances** directly from OCI Account Explorer with one click
 - **Start/Stop Autonomous Databases** from Explorer with confirmation prompt
+- **Update Network Access**: add your IP to ADB ACL (whitelisted_ips) directly from Explorer
+- **ACL display**: view current whitelisted IPs for Autonomous Databases in Explorer cards
+- **Auto-refresh**: resource state updates automatically after Start/Stop actions (polling)
 - Lifecycle state badges (RUNNING/STOPPED/AVAILABLE) with color indicators
 - Actions audited in the audit log
 
@@ -161,6 +164,25 @@ The platform combines security compliance scanning, AI-powered chat with **RAG (
 - Admin can view all logs; users see only their own
 - API endpoints for listing and clearing logs
 
+### 🔄 Export / Import Configuration
+- **Full config export** as JSON: OCI credentials (with private keys), GenAI configs, MCP servers, system prompts, app settings, ADB vector configs
+- **Import** from exported JSON with merge-by-ID (skips existing, prevents duplicates)
+- Private keys exported as base64 and restored to disk on import
+- Enables full environment migration between machines (Mac ↔ Windows ↔ Linux)
+
+### 🎨 Theme System
+- **Light/Dark mode toggle** in the sidebar footer
+- **Oracle-branded dark mode**: deep dark backgrounds with Oracle Red accent
+- **Oracle-branded light mode**: warm light backgrounds (original theme)
+- Theme preference persisted in localStorage across sessions
+- All CSS driven by CSS custom properties — zero hardcoded colors
+
+### ✏️ Terraform Prompt Editor
+- **Inline prompt editor** accessible from the Terraform menu (3-dot menu → Editar Prompt)
+- Edit the active Terraform system prompt name and content
+- **Auto-save with debounce** (800ms): changes saved to database automatically as you type
+- Visual "Salvando..." → "Salvo ✓" indicator
+
 ### 🔐 Security
 - **JWT authentication** with configurable expiry
 - **TOTP MFA** (Google Authenticator / Authy compatible)