docs: add roadmap section

README.md

@@ -365,11 +365,62 @@ DockerVault is built with a clear philosophy:
 
 ### 🔮 Future Ideas
 
-- Multi-host awareness (Lanx environments)
-- Centralized monitoring integration (OpenObserve, etc.)
-- Web UI (optional, not required)
-- Automation pipelines via webhook
-- Advanced reporting and visualization
+> Ideas that push DockerVault beyond backup — towards system awareness and control.
+
+#### 🧠 System Intelligence
+- Change detection (new/missing volumes, structure changes)
+- "Explain why" classification decisions
+- System understanding confidence score
+- Backup diff between runs
+- Detection of unknown/unclassified data
+
+#### 📊 Observability & Insight
+- Historical trends (size, duration, change rate)
+- Growth analysis (detect abnormal data expansion)
+- Backup performance tracking
+- Structured JSON logs for external systems
+
+#### 🚨 Alerting & Automation
+- Webhook-first automation triggers
+- ntfy notifications
+- Email reporting
+- Conditional alerts (failures, anomalies, missing data)
+- Integration with external systems (Node-RED, Home Assistant, OpenObserve)
+
+#### 🧪 Reliability & Verification
+- Automated restore testing (ephemeral containers)
+- Service-level validation (DB start, app health)
+- Integrity checks (borg/restic verification)
+- Backup validation reports
+
+#### ⚙️ Control & Extensibility
+- Pre/post execution hooks
+- Backup profiles (critical / full / custom)
+- Simulation mode (predict behavior before execution)
+- Advanced dry-run with diff preview
+
+#### 🔐 Security & Encryption
+- Engine-native encryption support
+- Optional post-process encryption (age, gpg)
+- Encryption validation and key awareness
+- Secure offsite export workflows
+
+#### 🔌 Plugin Ecosystem
+- Storage backends (S3, WebDAV, SSH, etc.)
+- Optional cloud targets (Dropbox, Google Drive, Proton Drive)
+- Notification plugins (webhook-first design)
+- Pluggable architecture for extensions
+
+#### 🌐 Multi-System Awareness
+- Multi-host environments (Lanx-style setups)
+- Centralized reporting and monitoring
+- Cross-node backup visibility
+
+#### 🖥 Platform & UX
+- Optional Web UI (status, history, alerts)
+- Docker-native deployment mode
+- Unraid Community Apps integration
+- Config-driven operation (env + config files)
 
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